Boy in sunglasses is running behind a fair.
A buy is walking with a hat on.
The boy cannot be both running and walking.
exists e1 x1 x2 x3.(ne_nam_boy(x1) & behind(e1,x3) & n_fair(x3) & Actor(e1,x1) & v_run(e1) & in(x1,x2) & n_sunglass(x2))
exists e1 s1 x1 x2.(a_on(s1) & Manner(e1,s1) & with(e1,x2) & n_hat(x2) & Actor(e1,x1) & v_walk(e1) & n_buy(x1))