premise: The 1986–87 St. John's Redmen basketball team represented St. John's University during the 1986–87 NCAA Division I men's basketball season. The team was coached by Lou Carnesecca in his nineteenth year at the school. St. John's home games are played at Alumni Hall and Madison Square Garden and the team is a member of the Big East Conference.
hypothesis: Lou Carnesecca's first season as coach of the St. John's Redmen basketball team was in 1974.
reason: His 19th season as coach was in 1986, therefore his first season as coach was in 1967, not 1974. It's difficult because this requires a complex understanding of the text and some  mathematical calculations as well.