A man carving an elephant while woodworking.
Nobody is carving
There is a man carving so there's somebody, not nobody.
exists e1 e2 x1 x2 x3.(a_topic(x1) & while(e1,e2) & Actor(e2,x2) & v_woodwork(e2) & Theme(e1,x3) & Actor(e1,x2) & v_carve(e1) & n_elephant(x3) & (x1 = x2) & n_man(x1))
-exists e1 x1.(Actor(e1,x1) & v_carve(e1) & n_person(x1))