Man standing on a chair with a net.
A man is trying to catch something with a net.
Trying to catch something with a net causes you to stand with the net.
exists x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & with(x3,x4) & n_net(x4) & n_chair(x3) & n_standing(x1) & of(x1,x2) & n_man(x2))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_catch(e2) & with(x2,x3) & n_net(x3) & n_thing(x2)) & n_man(x1))