python P1_POS <algorithm> <do_accuracy_test> <test_sentence>

: select one of these options; viterbi, beam, fwbw <do_accuracy_test> : select one of these options; yes, no <test_sentence> : (optional) testing sentence

python P1_POS.py viterbi yes "I like cats"

python P1_ExtensionDiffCorpus.py <corpus>

: select one of these options; brown, treebank, nps_chat, conll2000

===========

python P1_ExtensionDiffSmoothing.py