A young man performs a skateboard trick over some stairs.
A young amputee sitting in a wheelchair.
You cannot use a skateboard if you are in a wheelchair
exists e1 s1 x1 x2 x3 x4.(over(e1,x4) & n_stair(x4) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_trick(x2) & of(x2,x3) & n_skateboard(x3) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_wheelchair(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_amputee(x1) & a_young(s1) & Theme(s1,x1))