A man in an orange and black shirt holding a helmet.
The man is on a motorcycle.
A man in an orange and black shirt holding a helmet does not indicate that he is on a motorcycle.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e1,x6) & Actor(e1,x5) & v_hold(e1) & n_helmet(x6) & (x1 = x5) & in(x1,x2) & n_shirt(x4) & a_black(s1) & Theme(s1,x4) & n_orange(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.(on(x1,x2) & n_motorcycle(x2)))