A man dunks a basketball in front of a crowd.
A man headbutts a ball into the soccer net.
Dunking a ball cannot be done by headbutting it and a ball cannot be dunked into a soccer net.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_dunk(e1) & in(x2,x3) & of(x3,x4) & n_crowd(x4) & n_front(x3) & n_basketball(x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_net(x3) & of(x3,x4) & n_soccer(x4) & into(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_headbutt(e1) & n_ball(x2) & n_man(x1))