PROBLEM TO BE SOLVED: To provide a thinking support technology without highly relying on skill or knowledge of a user by providing a relevant sentence (phrase) for supporting changing of "ways of seeing, thinking" relevant to a thinking subject sentence (phrase), which exceeds the framework of a known document.;SOLUTION: Data storage means is provided generating a phrase string dividing a thinking subject sentence (phrase) into phrase units and storing a phrase list including a plurality of phrases having a syntactically common attribute as well as having a semantically common portion and a plurality of fourth three sets of phrase lists including a plurality of first three sets of phrase lists respectively including three sets of phrase lists which are divided into three by semantic relationships between the plurality of phrases. The three sets of phrase lists including each phrase included in the phrase string or information regarding the three sets of phrase lists having a connection of sharing more than one phrase included in the three sets of phrase lists is selectively presented.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT
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