After Sima Yi 's death , Cao Fang attempted to take back state power from Sima Yi 's son , Sima Shi , but was not successful and was eventually deposed by Sima Shi .
Head entity: sima shi Q707808 20 21 32 33
Tail entity: sima yi Q353698 1 2 15 16
Relation (head \u2192 tail): P22
Inverse relation (tail \u2192 head): P40