Question: Between what years was the son of Yuk Young-soo president of South Korea?
Sentence (from "Yuk Young-soo"): Yuk Young-soo (] November 29, 1925 – August 15, 1974) was the wife of the 3rd South Korean president Park Chung-hee and the mother of the 11th South Korean president Park Geun-hye.
Relevant evidence: Yes