Question: The 1996–97 NBA season was the 51st season of the National Basketball Association (NBA), this season featured the debut of Allen Ezail Iverson, an American former professional basketball player, who played for 14 seasons, in which organization?
Sentence (from "1996–97 NBA season"): The league used this season to mark its 50th anniversary, which included the unveiling of the league's list of its 50 greatest players.
Relevant evidence: No