Two young children are playing with a bubble-maker.
The children are playing with bubbles.
A bubble-maker produces bubbles.
exists e1 s1 x1 x2.(with(e1,x2) & n_bubble-maker(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2.(n_child(x1) & with(e1,x2) & n_bubble(x2) & Actor(e1,x1) & v_play(e1))