Two boys are at a BMX park and one is doing tricks on his bike.
A woman carries her baby onto an elevator.
Two boys cannot be a woman that carries her baby.
exists e1 p1 x1 x2 x3 x4.(on(e1,x4) & n_bike(x4) & of(x4,x3) & n_male(x3) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_trick(x3) & n_thing(x2) & card_eq_1(x2) & exists x5 x6.(at(x1,x5) & n_park(x5) & (x5 = x6) & ne_org_bmx(x6)) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(onto(e1,x3) & n_elevator(x3) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & n_baby(x2) & of(x2,x1) & n_female(x1) & n_woman(x1))