A man is welding, as the sparks fall into the air.
There is a man eating dinner.
A man cannot be welding and eating dinner at the same time.
exists e1 p1 x1 x2 x3.(n_air(x3) & n_sparks(x2) & exists e2.(into(e2,x3) & Actor(e2,x2) & v_fall(e2)) & as(e1,p1) & Actor(e1,x1) & v_weld(e1) & n_man(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_eat(e1) & n_dinner(x4) & (x2 = x3) & n_man(x2))