A male has his hand outside of a trolley car.
A man is waiving at people as he passes by riding in a trolley car.
A man could have his hand out the window for many reasons not only because he is waiving at people
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & of(x3,x4) & n_car(x4) & of(x4,x5) & n_trolley(x5) & outside(x2,x3) & n_thing(x3) & n_hand(x2) & of(x2,x1) & n_male(x1) & n_male(x1))
exists e1 p1 x1 x2.(exists e2 e3 x3 x4.(by(e2,e3) & in(e3,x3) & n_car(x3) & of(x3,x4) & n_trolley(x4) & Actor(e3,x1) & v_ride(e3) & Actor(e2,x1) & v_pass(e2)) & n_male(x1) & as(e1,p1) & at(e1,x2) & n_people(x2) & Actor(e1,x1) & v_waive(e1) & n_man(x1))