CREATE TABLE college (cname TEXT, state TEXT, enr DECIMAL)
CREATE TABLE player (pid DECIMAL, pname TEXT, ycard TEXT, hs DECIMAL)
CREATE TABLE tryout (pid DECIMAL, cname TEXT, ppos TEXT, decision TEXT)

Find the state of the college which player Charles is attending.
SELECT T1.state FROM college AS T1 JOIN tryout AS T2 ON T1.cname = T2.cname JOIN player AS T3 ON T2.pid = T3.pid WHERE T3.pname = 'Charles'
SELECT "T1"."state" FROM "college" AS "T1" JOIN "tryout" AS "T2" ON "T1"."cname" = "T2"."cname" JOIN "player" AS "T3" ON "T2"."pid" = "T3"."pid" AND "T3"."pname" = 'Charles'