INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING DEVICE

This information processing device executes a morphological analysis on input text so as to divide the input text into a plurality of words. The information processing device specifies a polysemous word among the plurality of words included in the input text and the meaning class of the polysemous word, on the basis of a cooccurrence table in which the cooccurrences of categories of polysemous words and single words differentiated for each meaning class are defined and the plurality of words included in the input text. The information processing device assigns a vector that corresponds to the meaning class of the polysemous word to the polysemous words included in the input text.