A small boy runs barefoot on a concrete surface while holding a racket.
A car is stuck in traffic.
It is not possible to be a small boy who runs on concrete and a car stuck in traffic simultaneously.
exists e2 e1 s1 s2 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_hold(e2) & n_racket(x4) & on(e1,x3) & n_surface(x3) & a_concrete(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_barefoot(x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2.(in(e1,x2) & n_traffic(x2) & Theme(e1,x1) & v_stick(e1) & n_car(x1))