A building apparatus that builds an emotion estimation-oriented information storage device, the building apparatus comprising:
- at least one processor;
- and
- at least one storage device storing processor-readable instructions that, when executed by the at least one processor, cause the building apparatus to:
- acquire biological information regarding a person performing pointing input using an electronic pen;
- acquire pen state information regarding the state of the electronic pen held by the person performing the pointing input and associated with the acquired biological information;
- discriminate an emotional state of the person holding the electronic pen based on the biological information;
- obtain range information regarding a range of values that may be taken by the coordinates corresponding to the position pointed to by the electronic pen and the pen state information at a time of the emotional state from the acquired pen state information, wherein the range information includes a first range of coordinates corresponding to a plurality of positions pointed to by the electronic pen while a sensor is in contact with the electronic pen and a second range of coordinates corresponding to a plurality of positions pointed to by the electronic pen while the sensor is not in contact with the electronic pen;
- store information regarding the emotional state and the range information regarding the range of values that may be taken by the coordinates corresponding to the position pointed to by the electronic pen and the pen state information into the emotion estimation-oriented information storage device, the information regarding the emotional state and the range information being associated with one another;
- receive an emotional state estimation request;
- and
- generate an emotional state estimation response including the information regarding the emotional state.