Two men wearing black t-shirts are sitting on the back of a truck.
Two men sit in the back of a truck.
If two men are wearing the same color shirts and sitting on the same truck they probably work there.
exists e2 e1 s1 x1 x2 x3 x4 x5.(n_back(x4) & on(e2,x4) & of(x4,x5) & n_truck(x5) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_t-shirt(x3) & a_black(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_back(x2) & in(e1,x2) & of(x2,x3) & n_truck(x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & card_eq_2(x1))