US Patent 7917352 Language processing system

A language processing system including: a forbidden word memory part that stores a forbidden word; a sequence candidate generator that generates a plurality of word sequence candidates where each words are described separately from plain text; and a word sequence estimator that reads the forbidden word from the forbidden word memory part, excludes the word sequence candidate containing the forbidden word from the plurality of word sequence candidates, and selects an estimated word sequence with the highest concatenation possibility of the words from among the plurality of word sequence candidates.