A young man in a green shirt is jumping with his skateboard over three steps in front of a skyscraper.
Two girls ride bikes in a thunderstorm.
Young man and two girls are different kind of persons and quantities. A skateboard is not a bike.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(in(e1,x5) & of(x5,x6) & n_skyscraper(x6) & n_front(x5) & with(e1,x3) & over(x3,x4) & n_step(x4) & card_eq_3(x4) & n_skateboard(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x1) & v_jump(e1) & in(x1,x2) & n_shirt(x2) & a_green(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(in(e1,x3) & n_thunderstorm(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_girl(x1) & card_eq_2(x1))