Computer-readable recording medium, estimation method and estimation device

An estimation method comprising:

• generating a preference trend based on content of a plurality of answers from a respondent for a plurality of inquiries each including a plurality of options, using a processor;
• based on a log of content of representation items that are represented at the plurality of inquiries to the respondent, determining whether information that changes the representation items is to be represented, using the processor;
• and
• generating an input candidate that changes the representation items according to the determining based on the preference trend and displaying the input candidate together with the representation items at the plurality of inquiries, using the processor.

An estimation device comprising:

• a memory;
• and
• a processor coupled to the memory and the processor configured to:
• generate a preference trend based on content of a plurality of answers from a respondent for a plurality of inquiries each including a plurality of options;
• based on a log of content of representation items that are represented at the plurality of inquiries to the respondent, determine whether information that changes the representation items is to be represented;
• and
• generate an input candidate that changes the representation items according to a determining result based on the preference trend and display the input candidate together with the representation items at the plurality of inquiries.