A skateboarder attempts to do a trick over a homemade ramp.
A skateboarder practices jumping over a high ramp for the first time.
A skateboarder attempting to do a trick over a ramp does not necessarily mean that the skateboarded is jumping over a high ramp for the first time.
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 s1 s2 x1 x2 x3 x4 x5.(n_time(x5) & a_first(s2) & Theme(s2,x5) & a_topic(x1) & for(e1,x5) & over(e1,x4) & n_ramp(x4) & a_high(s1) & Theme(s1,x4) & Actor(e1,x3) & v_jump(e1) & (x1 = x3) & n_practice(x1) & of(x1,x2) & n_skateboarder(x2))