A skateboarder attempts to do a trick over a homemade ramp.
The skateboarder made the ramp instead of buying one at the store.
A homemade ramp implies that the ramp was made at home by a skateboarder.
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))
exists e1 x1 x2 x5.(n_store(x5) & n_ramp(x2) & n_skateboarder(x1) & -exists e2 x3 x4.(of(e1,e2) & at(e2,x5) & Theme(e2,x4) & Actor(e2,x3) & v_buy(e2) & n_thing(x4) & card_eq_1(x4)) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1))