A man pushes two children in a large cart, as another child walks along side the cart.
A man and his children are playing.
You can not infer they are playing.
exists e1 p1 s1 x1 x2 x3.(exists e2 x4 x5.(along(e2,x5) & n_side(x5) & Theme(e2,x3) & Actor(e2,x4) & v_walk(e2) & n_child(x4) & -(x4 = x2)) & n_cart(x3) & n_cart(x3) & n_child(x2) & n_child(x2) & as(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_push(e1) & in(x2,x3) & a_large(s1) & Theme(s1,x3) & card_eq_2(x2) & n_man(x1))
exists e1 x1 x2 x3.(Actor(e1,x1) & v_play(e1) & subset_of(x3,x1) & n_child(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))