A young man does skateboard tricks on a ramp.
A young woman does skateboard tricks on a ramp.
The subject is either a man or a woman.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_ramp(x3) & Theme(e1,x2) & Actor(e1,x1) & v_skateboard(e1) & n_trick(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_ramp(x3) & Theme(e1,x2) & Actor(e1,x1) & v_skateboard(e1) & n_trick(x2) & n_woman(x1) & a_young(s1) & Theme(s1,x1))