CREATE TABLE table_name_56 (years_for_grizzlies VARCHAR, position VARCHAR, school_club_team VARCHAR)

What are the years when the grizzlies had a point guard who attended the school/club Florida?
SELECT years_for_grizzlies FROM table_name_56 WHERE position = "point guard" AND school_club_team = "florida"
SELECT "years_for_grizzlies" FROM "table_name_56" WHERE "florida" = "school_club_team" AND "point guard" = "position"