A skateboarder attempts to do a trick over a homemade ramp.
A skateboarder attempts a trick.
Skateboarder attempts to do trick is rephrasing of skateboarder attempts a trick.
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_attempt(e1) & exists e2 x2 x3 x4.(over(e2,x3) & n_ramp(x3) & of(x3,x4) & n_homemade(x4) & Theme(e2,x2) & Actor(e2,x1) & v_do(e2) & n_trick(x2)) & n_skateboarder(x1))
all x1.(n_trick(x1) -> exists x2 x3.(a_topic(x2) & for(x2,x1) & n_attempt(x2) & of(x2,x3) & n_skateboarder(x3)))