A guy is doing a bicycle trick in the air at dusk.
A man is running down a street
The man cannot be doing a bicycle trick while running
exists e1 x1 x2 x3 x4 x5.(n_air(x4) & at(e1,x5) & n_dusk(x5) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & in(x2,x4) & n_trick(x2) & of(x2,x3) & n_bicycle(x3) & n_guy(x1))
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_street(x2) & n_man(x1))