A computer program product for being executed on a computer causes an information processing apparatus to execute a process including reading an image data item from an image storage unit, and reading object information from an object information storage unit in which the object information relating to an object shown in the image data item is stored in association with identification information for identifying the object; displaying, by a display device, the image data items that have been read and the object information; accepting a selection of the object based on the object information, and accepting a specification of a position of the object with respect to the image data item; and displaying, in association with each other, the specified positions of the objects that have the same identification information, among the objects shown in different image data items for which the specifications of the positions have been accepted.