PROBLEM TO BE SOLVED: To facilitate generation of an object query sentence corresponding to specific grammar.;SOLUTION: A query developer 101 operates an object query execution device 100 to generate a query model 191. A query model editing part 110 generates a diagram representing the object query sentence as the query model 191 based on designation of the query developer 101. An object query sentence generation part 120 generates the object query sentence 181 from the query model 191 based on an object query conversion rule 196 with a correspondence rule between the grammar of the query model 191 and predetermined grammar. An object query execution part 130 executes the object query sentence 181, and outputs an object query result 184.;COPYRIGHT: (C)2011,JPO&INPIT
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