A man riding a black snowboard jumps as people in the background look on.
The man is riding the bike.
The man cannot be both riding a snowboard and riding a bike at the same time.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_look(x6) & of(x6,x7) & n_background(x7) & a_topic(x1) & a_on(s2) & Manner(e1,s2) & as(e1,x5) & in(x5,x6) & n_people(x5) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_jump(x3) & of(x3,x4) & n_snowboard(x4) & a_black(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(n_bike(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1))