INTERACTION DEVICE, WEIGHT INFORMATION LEARNING DEVICE, INTERACTION METHOD, WEIGHT INFORMATION LEARNING METHOD, AND PROGRAM

PROBLEM TO BE SOLVED: To solve the problem that a person cannot talk naturally with an interaction device, conventionally.SOLUTION: An interaction device comprises: an interaction structure information storage part capable of storing interaction structure information containing one or more interaction connection information having a first interaction act tag that abstracts an output sentence of a first speaker, and a second interaction act tag that abstracts an output sentence of a second speaker; an output sentence information storage part capable of storing output sentence information having the second interaction act tag and one or more sentences; a first interaction act tag acquiring part for acquiring the first interaction act tag corresponding to the output sentence by using the received output sentence; a second interaction act tag acquiring part for acquiring one second interaction act tag out of one or more second interaction act tags corresponding to the first interaction act tag; a sentence acquiring part for acquiring the sentence corresponding to the second interaction act tag, from the output sentence information storage part; and a sentence output part for outputting the sentence. Thereby, a person can talk naturally with the interaction device.