CREATE TABLE table_33640 ("Player" TEXT, "Nationality" TEXT, "Position" TEXT, "From" TEXT, "School/Country" TEXT)

What is the nationality of the guard/forward who began playing in 1977?
SELECT "Nationality" FROM table_33640 WHERE "Position" = 'guard/forward' AND "From" = '1977'
SELECT "Nationality" FROM "table_33640" WHERE "From" = '1977' AND "Position" = 'guard/forward'