Two children are playing with a bicycle.
The children have a bike.
The children are playing with a bicycle so they must have a bike.
exists e1 x1 x2.(with(e1,x2) & n_bicycle(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_bike(x2))