Question: What president was assassinated in an explosion on August 1981, and was succeeded by a man elected as the new Supreme Leader by the Assembly of Experts on 4 June 1989 at the age of 49?
Sentence (from "Government of Mir-Hossein Mousavi (1985–89)"): On 28 October, the parliament approved Mousavi with a vote of 115 to 39.
Relevant evidence: No