RETRIEVAL SYSTEM, RETRIEVAL METHOD AND RETRIEVAL PROGRAM

PROBLEM TO BE SOLVED: To provide a retrieval system capable of performing a condition-designated narrowing-down retrieval on a specific attribute that text has.SOLUTION: A retrieval system comprises: a display section 203; an input section 201; an input-enabled candidate list 404; a substance DB 402; an input-enabled attribute name display processing section 202 for displaying on the display section 203 input-enabled attribute information relative to a retrieval character string; a retrieval key creation section 301 for creating a retrieval key including attribute information on the basis of attribute information and the retrieval character string inputted from the input section 201 based on the input-enabled attribute information displayed on the display section 203; and a substance data acquisition section in which the substance DB 402 is retrieved on the basis of retrieval information of multi-dimensional data based on the retrieval key and a retrieval result is displayed on the display section 203.