aW1wb3J0IG5sdGsKc2VudGVuY2UgPSAmcXVvdDsmcXVvdDsmcXVvdDtBdCBlaWdodCBvJ2Nsb2NrIG9uIFRodXJzZGF5IG1vcm5pbmcgQXJ0aHVyIGRpZG4ndCBmZWVsIHZlcnkgZ29vZC4mcXVvdDsmcXVvdDsmcXVvdDsKdG9rZW5zID0gbmx0ay53b3JkX3Rva2VuaXplKHNlbnRlbmNlKQp0b2tlbnNbJ0F0JywgJ2VpZ2h0JywgJnF1b3Q7bydjbG9jayZxdW90OywgJ29uJywgJ1RodXJzZGF5JywgJ21vcm5pbmcnLCdBcnRodXInLCAnZGlkJywgJnF1b3Q7bid0JnF1b3Q7LCAnZmVlbCcsICd2ZXJ5JywgJ2dvb2QnLCAnLiddCnRhZ2dlZCA9IG5sdGsucG9zX3RhZyh0b2tlbnMpCnRhZ2dlZFswOjZd
import nltk
sentence = """At eight o'clock on Thursday morning Arthur didn't feel very good."""
tokens = nltk.word_tokenize(sentence)
tokens['At', 'eight', "o'clock", 'on', 'Thursday', 'morning','Arthur', 'did', "n't", 'feel', 'very', 'good', '.']
tagged = nltk.pos_tag(tokens)
tagged[0:6]