1. A mobility data processing apparatus identifying, for one or more movable mobility instances existing in real space, mobility context which is information indicating a characteristic of a movement relationship with another mobility instance, the mobility data processing apparatus comprising: a mobility data managing unit configured to store pieces of mobility data including space information and time information about the plurality of mobility instances; a process executing unit configured to execute a predetermined process for improving identification of the mobility context, for the pieces of mobility data; and a mobility context identifying unit configured to, based on a time distance and a spatial distance between a piece of mobility data of one mobility instance and a piece of mobility data of another mobility instance, identify mobility context of the one mobility instance after the process by the process executing unit.