# 把语料中的单词全部抽取出来, 转成小写, 并且去除单词中间的特殊符号
def words(text): return re.findall('[a-z]+', text.lower()) def train(features):model = collections.defaultdict(lambda: 1)for f in features:model[f] += 1return modelNWORDS = train(words(open('big.txt').read()))

defaultdict(<function __main__.train.<locals>.<lambda>>,{'counterorders': 2,'ureters': 3,'displeasure': 9,'omitted': 10,'sparrow': 5,'tubercle': 66,'curse': 7,'pauncefote': 2,'updated': 5,'gloomier': 4,'foremost': 17,'wabash': 2,'anarchists': 4,'intermediacy': 2,'threadbare': 2,'endeavouring': 9,'freeholders': 11,'irreproachably': 3,'ignominious': 3,'illuminated': 9,'galitsyn': 2,'struthers': 3,'shuya': 2,'futile': 16,'each': 412,'district': 38,'acquiesced': 2,'staircase': 14,'shamelessly': 2,'doubter': 2,'plumage': 3,'worming': 2,'militiamen': 30,'tombstones': 2,'presupposable': 2,'notable': 6,'louise': 5,'overtook': 17,'abstraction': 8,'displeased': 20,'ranchmen': 2,'instal': 2,'kashmir': 3,'nay': 4,'wired': 5,'pencil': 11,'mustache': 46,'breast': 87,'dioxide': 9,'disappointments': 4,'impassive': 6,'though': 651,'floridas': 7,'torban': 2,'combine': 11,'yawning': 7,'homeless': 4,'cinema': 2,'subjects': 68,'rib': 9,'bin': 3,'cylinders': 18,'bijou': 2,'acted': 38,'accepted': 88,'attainment': 11,'mustered': 8,'audacious': 2,'respectable': 15,'bilateral': 10,'coraco': 2,'stuffs': 2,'reheat': 2,'roberts': 3,'trenton': 6,'sharpening': 5,'component': 6,'pat': 4,'animation': 32,'coincidently': 5,'cy': 2,'smoker': 2,'manes': 3,'adelaide': 2,'prayer': 43,'industries': 65,'advantageously': 5,'dissolute': 3,'tendon': 130,'barton': 2,'ablest': 2,'episode': 12,'barges': 3,'sipping': 4,'inoperative': 2,'soap': 8,'padlocks': 2,'vagaries': 2,'potemkins': 3,'blackguard': 5,'smashed': 11,'bursitis': 17,'goes': 61,'prefix': 3,'shops': 23,'basketful': 2,'stepfather': 22,'veil': 17,'adorers': 2,'overhauled': 6,'liquors': 3,'bottoms': 3,'plastun': 2,'surest': 4,'carlton': 5,'friedland': 6,'alice': 14,'unhealthy': 15,'cannula': 9,'eleven': 22,'persuasions': 3,'cawolla': 2,'elephants': 2,'mechanicks': 2,'kitten': 8,'promotes': 2,'venae': 2,'matt': 2,'private': 94,'essential': 93,'creating': 25,'exclaiming': 5,'extent': 100,'oxidising': 2,'dessicans': 3,'uplands': 4,'tops': 4,'jerky': 6,'irregularity': 6,'recruitment': 3,'fringes': 17,'shopkeepers': 7,'tendencies': 16,'unconditionally': 3,'brandy': 16,'camberwell': 3,'statue': 9,'metatarsal': 9,'measurement': 3,'enclosures': 2,'suspecting': 4,'noses': 7,'standard': 55,'inspection': 19,'enterprising': 6,'freak': 4,'liberating': 2,'ordeal': 3,'pancras': 2,'luxury': 9,'livery': 3,'anconeus': 2,'polypus': 4,'leapt': 3,'liberally': 2,'finish': 50,'previously': 56,'mccarthy': 38,'mallet': 6,'bluestocking': 3,'conveyance': 8,'transformer': 2,'compel': 10,'blasphemies': 3,'suggest': 25,'shares': 4,'dishonoured': 4,'hen': 7,'vols': 28,'narcotisation': 2,'speranski': 80,'cherished': 15,'overcoat': 27,'malbrook': 2,'nephroma': 2,'habeus': 2,'coward': 9,'widower': 5,'extremely': 52,'resembling': 53,'understood': 223,'impetus': 10,'actinomyces': 10,'eosinophile': 4,'pronounce': 10,'arrangements': 30,'inevitably': 33,'hochgeboren': 2,'crusted': 3,'weeks': 118,'slightest': 26,'fords': 2,'stimulatingly': 2,'economically': 3,'thrice': 9,'peg': 5,'adventurous': 4,'mountainous': 3,'potch': 2,'adults': 27,'kindled': 11,'have': 3494,'sedate': 3,'democrats': 94,'vaginitis': 2,'foo': 2,'headgear': 2,'gape': 8,'reassigned': 2,'incompletely': 2,'pharmacopoeial': 2,'feelings': 79,'phone': 3,'anger': 60,'improvisations': 2,'dethrone': 2,'toothed': 2,'sweetish': 2,'tack': 4,'unwinding': 3,'pediculosis': 2,'overfed': 2,'rabble': 8,'opsonins': 4,'ver': 3,'postures': 3,'entertainment': 8,'unkind': 5,'lightest': 3,'undergone': 10,'persons': 120,'mention': 47,'iodism': 2,'sterne': 2,'kolocha': 17,'wecollect': 2,'asked': 778,'augury': 2,'uhlans': 29,'fist': 9,'winner': 3,'praise': 17,'legislative': 32,'greediness': 3,'resembled': 9,'expense': 34,'despotic': 2,'storage': 4,'league': 54,'granular': 8,'differed': 11,'enlistment': 2,'authorizing': 17,'remembers': 7,'outlays': 4,'malignant': 89,'allowed': 87,'rang': 30,'wing': 33,'sped': 2,'map': 39,'might': 537,'disrupting': 2,'pyrexia': 7,'besprinkled': 3,'reddaway': 3,'intrusions': 2,'respectively': 11,'ilagin': 26,'portray': 2,'shenkii': 2,'drilled': 5,'devilish': 4,'abate': 6,'trophic': 21,'soil': 94,'smelters': 3,'people': 900,'minerals': 9,'site': 33,'ceremony': 18,'rostov': 777,'occupation': 53,'whale': 4,'definitely': 36,'steam': 31,'turbinate': 2,'recollection': 24,'sports': 3,'apportioned': 12,'ripon': 2,'representations': 4,'calcanean': 3,'demonetized': 2,'cloaks': 10,'river': 113,'industrial': 99,'foreman': 6,'girt': 4,'close': 220,'warne': 2,'blubberers': 2,'disruption': 5,'diligently': 4,'blamelessly': 2,'cornwall': 3,'edinburgh': 26,'denouncing': 5,'sasha': 3,'zeal': 26,'shouted': 255,'powerlessness': 2,'helpless': 23,'cheapest': 3,'homely': 9,'pyosalpynx': 2,'poorhouse': 2,'adhesive': 4,'lumber': 15,'cawing': 3,'splashed': 7,'interphalangeal': 3,'maintenance': 11,'pervade': 2,'beads': 5,'scarcity': 5,'anticipate': 5,'orthodox': 10,'sponge': 8,'infer': 4,'inverted': 4,'bleak': 5,'main': 110,'doddering': 2,'ligation': 53,'shiloh': 3,'haitian': 2,'hindrance': 12,'amputate': 5,'obstructed': 11,'extensively': 9,'raised': 213,'visualized': 2,'showed': 150,'awaits': 8,'specified': 10,'gush': 2,'partially': 11,'calibres': 2,'kettles': 2,'easy': 123,'confirming': 4,'hordes': 4,'saved': 52,'sneered': 3,'peevishly': 2,'unexpectedly': 58,'handedness': 2,'gigantic': 24,'bouts': 3,'hoosier': 2,'plural': 4,'disuse': 6,'flora': 10,'wriggles': 2,'reproving': 2,'unrepaired': 2,'repose': 8,'baltic': 2,'whistle': 29,'barbarous': 3,'warp': 3,'vozdvizhenka': 8,'intubation': 7,'dreaminess': 2,'creek': 4,'suffrage': 116,'gay': 36,'bagovut': 3,'dropping': 19,'poultry': 3,'sentiments': 15,'bivouacs': 4,'pobox': 5,'fuller': 13,'bombard': 2,'vanishes': 4,'independent': 74,'card': 31,'sheen': 2,'descends': 3,'cerebritis': 2,'sparrows': 2,'stab': 9,'coverlet': 2,'footmarks': 4,'homicidal': 3,'frustration': 2,'sicca': 4,'slowly': 134,'stifling': 3,'poetry': 11,'inadvertent': 2,'faints': 2,'tudor': 2,'hancocks': 2,'postulated': 2,'delegate': 10,'ratify': 8,'rag': 7,'yankovo': 4,'staked': 6,'leprosy': 5,'cheyenne': 2,'verbally': 2,'re': 190,'pedunculated': 14,'splendidly': 12,'troubled': 18,'healed': 17,'tuning': 2,'farmer': 28,'bourbon': 3,'differently': 26,'descry': 2,'filter': 5,'sob': 20,'newfoundland': 2,'flattered': 18,'lotions': 9,'refinements': 6,'overtake': 13,'offerings': 3,'kent': 6,'pimple': 2,'carousals': 4,'intrigue': 12,'salut': 2,'pliant': 2,'zum': 2,'saw': 600,'load': 9,'engineers': 5,'imports': 12,'indifference': 27,'are': 3631,'wringing': 3,'kidney': 22,'nun': 4,'wool': 43,'utero': 2,'tag': 3,'hamlet': 2,'attain': 51,'ingested': 2,'longitudinal': 6,'detestable': 4,'inspector': 32,'hernia': 14,'circulates': 2,'adieu': 7,'annulment': 4,'tumour': 224,'elect': 13,'sidorov': 5,'eats': 9,'bond': 27,'messages': 7,'surgeon': 44,'dissecting': 6,'clarifying': 2,'stout': 63,'wrung': 18,'sincere': 23,'reverie': 8,'stampede': 3,'vindicate': 2,'cartload': 2,'semiopen': 2,'gainful': 2,'noting': 11,'marsh': 4,'interfering': 20,'sevres': 3,'charmee': 2,'cherish': 7,'beseech': 4,'transylvania': 4,'new': 1212,'weason': 2,'frontiersmen': 6,'feverish': 25,'establish': 46,'grassy': 2,'assent': 10,'muscularly': 4,'rire': 2,'mcmaster': 11,'pineapples': 3,'maritime': 6,'debauchery': 6,'disliked': 21,'relationships': 3,'swarmed': 5,'surpassed': 4,'discernible': 4,'thyreoid': 22,'paddle': 4,'zoology': 4,'tenn': 4,'wood': 89,'persuasiveness': 3,'bashful': 3,'uterine': 12,'convention': 152,'unshapely': 2,'homes': 36,'bicipital': 3,'admirable': 15,'nightshirt': 2,'fibrin': 17,'bartenstein': 3,'guess': 18,'circlet': 2,'adventitious': 9,'indemnify': 6,'typewriting': 5,'expunging': 2,'quand': 6,'exactions': 2,'receiving': 55,'incur': 3,'giants': 3,'tearing': 23,'probing': 4,'devise': 10,'hearth': 2,'placental': 2,'hammering': 6,'defeating': 3,'womanly': 8,'jewellery': 3,'kuragins': 4,'target': 6,'stevedore': 2,'safest': 3,'sounder': 3,'likes': 9,'appointments': 12,'speech': 83,'quaker': 3,'antonov': 2,'proofs': 15,'boasting': 6,'wegiment': 3,'disciplined': 4,'occupancy': 2,'flare': 2,'copenhagen': 3,'zenger': 4,'battalions': 27,'truth': 116,'research': 37,'recurvatum': 2,'notion': 17,'dishonour': 2,'glittered': 17,'kittenish': 2,'handed': 81,'acquiescence': 2,'waggled': 2,'forged': 5,'unjust': 11,'callous': 13,'mantles': 2,'election': 120,'drummed': 2,'salve': 2,'agrees': 3,'discharging': 5,'cannons': 2,'impure': 3,'probable': 28,'administration': 118,'considerable': 174,'forwards': 19,'waterloo': 10,'flail': 5,'claiming': 7,'phalanges': 12,'bondage': 16,'pelageya': 17,'bigger': 8,'southern': 197,'perch': 5,'enriched': 4,'metaphysis': 3,'protection': 64,'factotum': 2,'cavalryman': 6,'radiated': 6,'cheerfully': 14,'solid': 42,'vines': 2,'scarves': 4,'quick': 82,'notabilities': 4,'him': 5231,'sixteenth': 12,'ignoring': 2,'deserters': 2,'protege': 5,'indulgence': 10,'supreme': 75,'closes': 7,'shilling': 5,'footing': 16,'mission': 35,'madame': 44,'dissatisfied': 35,'signatures': 4,'helps': 6,'garlic': 2,'wart': 6,'won': 202,'overlooked': 14,'lanfrey': 2,'dulness': 2,'unnatural': 38,'supplier': 3,'harassed': 4,'hare': 37,'slide': 5,'necessitates': 6,'conceived': 8,'mode': 19,'chant': 2,'packing': 35,'tentacles': 2,'liberality': 2,'phantasm': 2,'gloat': 3,'promptitude': 2,'merchants': 55,'whatnots': 2,'spirited': 13,'rupia': 5,'succumbs': 2,'fondest': 3,'rusty': 5,'strapped': 2,'looking': 490,'numerical': 6,'jaws': 19,'mann': 2,'smelter': 2,'becher': 4,'comprehensive': 5,'vessel': 138,'code': 14,'twopence': 3,'semilunar': 9,'elected': 45,'tone': 167,'epithelium': 56,'steve': 2,'pinckney': 4,'knapsack': 8,'kneeling': 9,'strand': 6,'solitude': 19,'gentlemanly': 2,'thoughts': 126,'castanet': 2,'bushy': 10,'descried': 4,'aponeurotic': 2,'surrenders': 2,'ordered': 149,'emancipation': 24,'alley': 6,'blazers': 3,'servants': 89,'rests': 18,'tooth': 28,'risks': 15,'yoke': 6,'inflammation': 94,'blonde': 10,'album': 6,'duc': 12,'thorns': 5,'planter': 19,'log': 21,'swarm': 8,'trocar': 4,'injured': 56,'liquor': 14,'perforations': 7,'censuring': 2,'contracture': 29,'informer': 2,'switzerland': 9,'ponies': 2,'glass': 117,'burdensome': 5,'security': 22,'bitch': 13,'bacillary': 5,'transmuted': 2,'atrocious': 3,'elects': 2,'but': 5654,'muir': 3,'nikita': 5,'muddled': 4,'lifts': 3,'impresses': 2,'slim': 14,'maksim': 2,'garrulously': 2,'utterances': 2,'stammered': 6,'midsummer': 2,'trousseau': 5,'hogs': 3,'metacarpals': 3,'blindfold': 5,'nonmoral': 2,'moonlight': 19,'waddling': 6,'pointing': 89,'differentiating': 4,'silly': 14,'ingest': 2,'imply': 13,'enlarges': 3,'cart': 57,'differ': 16,'inflamed': 54,'bolding': 2,'shave': 4,'adroitly': 4,'served': 64,'straining': 19,'fall': 125,'autocrats': 3,'unreasonably': 2,'salter': 2,'ramshackle': 2,'eminent': 13,'molle': 2,'pained': 8,'loyal': 21,'chalk': 14,'willard': 3,'idleness': 13,'canceled': 4,'inoculation': 23,'sounding': 7,'loopholes': 2,'initial': 20,'vicar': 3,'oklahoma': 16,'precautions': 15,'commensurable': 2,'batch': 2,'push': 20,'sublimed': 2,'warned': 19,'meuse': 4,'snoring': 7,'manner': 136,'this': 4064,'household': 56,'millionaires': 6,'duodenum': 3,'dixon': 2,'liberated': 11,'arrangement': 36,'soulless': 2,'reserved': 16,'essen': 2,'whirlpool': 2,'duport': 9,'hellish': 4,'engaged': 88,'apropos': 2,'retuned': 2,'cancellation': 2,'crack': 21,'morrant': 2,'pleasurable': 2,'sunk': 28,'indorsed': 7,'wanted': 214,'integration': 3,'translations': 2,'framework': 24,'skill': 35,'upper': 131,'mufti': 2,'softened': 29,'callosity': 5,'thrombosis': 40,'septum': 4,'sont': 3,'sheaf': 2,'redistribution': 6,'clymer': 2,'fatal': 64,'laid': 187,'nares': 2,'archway': 2,'deterred': 2,'oscillates': 2,'ineffective': 2,'vacant': 11,'confide': 7,'nominal': 9,'hiram': 2,'resected': 12,'unwanted': 2,'pattern': 8,'cicatricial': 42,'bowl': 7,'nor': 281,'wobbly': 3,'sarcomas': 9,'solder': 2,'laceration': 10,'illustrating': 6,'psammoma': 3,'stuck': 21,'perversion': 2,'jewels': 6,'country': 424,'enforce': 30,'battlefields': 2,'speechless': 2,'ruin': 49,'grassland': 2,'mistrusting': 2,'bench': 27,'scurrying': 2,'rhetor': 25,'morton': 2,'suggestiveness': 2,'remorseless': 2,'divert': 7,'melyukovs': 8,'obviates': 2,'cooperative': 10,'started': 97,'employe': 3,'perfidiousness': 2,'replied': 321,'imagined': 49,'marvel': 2,'pitiable': 8,'genteel': 2,'unlocked': 9,'independence': 152,'appealed': 14,'flexible': 6,'xxiv': 9,'authority': 101,'frilled': 2,'thoroughbred': 6,'accuser': 2,'hesitating': 17,'pork': 4,'voltaires': 2,'bengal': 3,'tends': 49,'wastage': 2,'shrill': 14,'profunda': 4,'thanksgiving': 7,'enclose': 2,'seedy': 3,'furs': 11,'splash': 5,'supplementary': 4,'sedately': 3,'certainly': 120,'puppet': 4,'injustice': 14,'lanolin': 4,'thicknesses': 2,'excuses': 7,'faces': 163,'fourteenth': 28,'trimming': 2,'prick': 6,'economic': 121,'stands': 20,'programming': 2,'princes': 12,'lottery': 2,'exsiccated': 2,'parceled': 2,'musculo': 9,'standstill': 3,'consolation': 19,'uncle': 136,'federalism': 2,'intravenous': 4,'assumption': 32,'doors': 48,'lisa': 2,'disregard': 7,'appendix': 12,'myoma': 9,'cost': 66,'parrot': 6,'manoeuvre': 2,'achtung': 2,'acorn': 3,'aggrieved': 4,'cutlery': 2,'glorious': 12,'rotten': 9,'denoted': 2,'muster': 4,'hug': 2,'eccentricity': 3,'susquehanna': 4,'partake': 4,'nicely': 10,'thing': 304,'wages': 51,'dislike': 10,'beams': 10,'spree': 3,'antagonizing': 2,'advises': 4,'snuffling': 2,'rods': 6,'borisov': 2,'mayor': 16,'mathematics': 12,'invent': 11,'teaching': 19,'girdle': 4,'averting': 4,'elijah': 2,'platelets': 2,'uvula': 2,'mumbling': 5,'retreat': 95,'fwashing': 2,'bar': 26,'scudding': 2,'nowadays': 19,'loftiness': 3,'ceded': 9,'delirium': 35,'wiring': 3,'centre': 51,'frightfully': 2,'wag': 6,'sockets': 2,'fluctuates': 2,'concealment': 4,'intima': 11,'burnt': 9,'tiding': 3,'osteomas': 4,'tug': 5,'vis': 2,'fabrication': 2,'powers': 150,'sweeps': 2,'supervene': 7,'meal': 16,'briskly': 20,'reinforce': 3,'devriez': 2,'youngster': 5,'coast': 41,'sameness': 2,'about': 1498,'whither': 9,'tolstoy': 14,'certain': 362,'paunch': 2,'laurel': 4,'stamping': 4,'incorporate': 4,...})