Several people watch a daredevil on a quad ride a wheelie down the street.
The guy doing a wheelie down the street on his quad catches the attention of the group.
Several people are a group, and ride a wheelie is a paraphrase of doing a wheelie.
exists s1 x1 x2 x5.(n_street(x5) & all x3.(n_wheelie(x3) -> exists e1 s2 x4.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & on(x2,x4) & down(x4,x5) & for(x4,x3) & n_ride(x4) & a_quad(s2) & Theme(s2,x4))) & n_daredevil(x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 e2 x1 x2 x3 x4 x5 x6 x7.(n_group(x7) & n_attention(x6) & n_quad(x5) & of(x5,x4) & n_male(x4) & n_street(x4) & n_guy(x1) & Theme(e2,x6) & Actor(e2,x1) & v_catch(e2) & of(x6,x7) & on(e1,x5) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & down(x3,x4) & n_wheelie(x3) & (x1 = x2))