A small boy is placing items from a cart onto the check out.
The boy is playing football outside.
One cannot be playing football and placing items into check out at the same time.
exists e1 s1 s2 x1 x2 x3 x4.(n_check(x4) & a_out(s2) & Manner(e1,s2) & onto(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_place(e1) & from(x2,x3) & n_cart(x3) & n_item(x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_outside(x2) & of(x2,x3) & n_football(x3))