A man skateboards, while another man rides a bike.
There are two men in this picture
A man and another man is equal to two men.
exists p1 p2 p3 x1 x2.(rel(p1,x1) & n_skateboard(x1) & of(x1,x2) & n_man(x2) & n_man(x2) & exists x5.n_event(x5) & exists e1 x3 x4.(Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & n_bike(x4) & n_man(x3) & -(x3 = x2)) & while(p2,p3))
exists p1 x1 x2.(n_picture(x2) & in(p1,x2) & exists x3.((x1 = x3) & n_man(x3) & card_eq_2(x3)))