A young man performing a bicycle stunt on a very small platform, while another is spotting him.
A man does a dangerous trick on one wheel of a bicycle with his girlfriend watching.
Not all tricks are dangerous or done on one wheel and it is not implied that his girlfriend is watching.
exists e1 p1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & exists e2 x6.(Theme(e2,x1) & Actor(e2,x6) & v_spot(e2) & n_thing(x6)) & n_male(x1) & while(e1,p1) & on(e1,x5) & n_platform(x5) & a_small(s2) & Theme(s2,x5) & r_very(x5) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_stunt(x3) & of(x3,x4) & n_bicycle(x4) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3 x4 x5 x6.(on(e1,x3) & of(x3,x4) & with(x4,x5) & n_watching(x5) & of(x5,x6) & n_girlfriend(x6) & of(x5,x1) & n_male(x1) & n_bicycle(x4) & n_wheel(x3) & card_eq_1(x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & a_dangerous(s1) & Theme(s1,x2) & n_man(x1))