three children playy together.
Three children are sharing a pizza.
Playing together and sharing pizza are not the same action.
exists x1.(a_topic(x1) & n_playy(x1) & r_together(x1) & n_child(x1) & card_eq_3(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_share(e1) & n_pizza(x2) & n_child(x1) & card_eq_3(x1))