Question: The 1979–80 Phoenix Suns season was the 12th season for the Phoenix Suns of the National Basketball Association, the Suns were led by head coach John MacLeod, an American, his which number season with the team?
Sentence (from "1979–80 Phoenix Suns season"): In the Western Conference Semifinals, the Suns would lose to the Pacific-winning Los Angeles Lakers, who later went on to win the season's championship.
Relevant evidence: No