A young child holds a spoon to its mouth while sitting in a chair.
A child jumps on a trampoline.
One cannot be sitting in a chair while one jumps.
exists e1 e2 s1 x1 x2 x3 x4.(while(e1,e2) & in(e2,x4) & n_chair(x4) & Actor(e2,x1) & v_sit(e2) & to(e1,x3) & n_mouth(x3) & of(x3,x1) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_spoon(x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(on(e1,x2) & n_trampoline(x2) & Actor(e1,x1) & v_jump(e1) & n_child(x1))