To skillfully absorb difference in characteristics to be taken account for each language and embodying common unique expression extraction as a processing system.SOLUTION: A language characteristic extraction device 11 comprises a language characteristic extraction section which: selects an extraction rule corresponding to the characteristics of a target language from a collection of the extraction rules common to a plurality of languages; deems a method to extract the detailed origin tailored to the target language, and what is defined as an output condition, as a characteristic extraction rule by language; defines the characteristic extraction rule by language for each of a plurality of target languages; refers to the characteristic extraction rule by language for extracting an origin relating to an expression or a part of speech that is defined against a morpheme analysis result of an input sentence and against the language of the input sentence, and that is further included in the morpheme analysis resu extracts the origin corresponding to the language; and outputs thereof as a language characteristic extraction result.SELECTED DRAWING: Figure 1
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