%+%                     String concatenation
EOS                     Special Tokens
dictionary              Word dictionaries
kgram_freqs             k-gram Frequency Tables
language_model          k-gram Language Models
midsummer               A Midsummer Night's Dream
much_ado                Much Ado About Nothing
parameters              Language Model Parameters
perplexity              Language Model Perplexities
preprocess              Text preprocessing
probability             Language Model Probabilities
query                   Query k-gram frequency tables or dictionaries
sample_sentences        Random Text Generation
smoothers               k-gram Probability Smoothers
tknz_sent               Sentence tokenizer
word_context            Word-context conditional expression
