 The church features a narthex and a cella ( or " <unk> " ) with an essentially rectangular elongated plan . The narthex is small , but has a medieval tomb underneath it . There are four entrances to the church : two accessing the cella from the south and west , and another two for the narthex from the west and north . The apse of the church has three small parts which overlap each other to form a single , larger unit . The <unk> and <unk> of the church are located by the apse . 
