A man spinning what may be his grandson in a circle at a park.
A man and a boy are fishing.
A man spinning what may be his grandson cannot be the man and a boy fishing.
exists x1 x2 x6.(a_topic(x1) & exists e1 e2 p1 x3.(n_thing(x3) & Theme(e2,x3) & Actor(e2,x2) & v_spin(e2) & exists p2 x4 x5.(at(p2,x5) & n_park(x5) & in(p2,x4) & n_circle(x4) & (x3 = x6)) & Topic(e1,p1) & Actor(e1,x3) & v_may(e1)) & n_grandson(x6) & of(x6,x1) & n_male(x1) & (x1 = x2) & n_man(x1))
exists p1 x1 x2 x3.(exists x4.((x1 = x4) & n_fishing(x4)) & subset_of(x3,x1) & n_boy(x3) & subset_of(x2,x1) & n_man(x2))