This guy is trying to perform new stunts and practicing for the big event.
A man is trying to think of new tricks to perform
Just because the man is trying to perform new stunts does not mean he is trying to think of new tricks.
exists e1 p1 s2 x1 x5.(n_event(x5) & a_big(s2) & Theme(s2,x5) & n_guy(x1) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s1 x2 x3 x4.(for(e2,x5) & Theme(e2,x2) & Actor(e2,x1) & v_perform(e2) & n_practicing(x4) & n_stunt(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_new(s1) & Theme(s1,x2)))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 p2 s1 x2.(of(e2,x2) & Topic(x2,p2) & exists e3.(Actor(e3,x2) & v_perform(e3)) & n_trick(x2) & a_new(s1) & Theme(s1,x2) & Actor(e2,x1) & v_think(e2)) & n_man(x1))