CREATE TABLE table_31535 ("Player" TEXT, "Nationality" TEXT, "Position" TEXT, "Years in Toronto" TEXT, "School/Club Team" TEXT)

What year is United States school/club team from Arkansas play in Toronto
SELECT "Years in Toronto" FROM table_31535 WHERE "Nationality" = 'united states' AND "School/Club Team" = 'arkansas'
SELECT "Years in Toronto" FROM "table_31535" WHERE "Nationality" = 'united states' AND "School/Club Team" = 'arkansas'