Four people are playing basketball on a plank deck outdoors.
Four professional basketball players are practicing.
Not everyone who practicing basketball are professionals
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & n_outdoors(x3) & of(x3,x4) & n_deck(x4) & a_plank(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_basketball(x2) & n_people(x1) & card_eq_4(x1))
exists e1 s1 x1 x2.(Actor(e1,x1) & v_practice(e1) & n_player(x1) & of(x1,x2) & n_basketball(x2) & a_professional(s1) & Theme(s1,x1) & card_eq_4(x1))