Man standing on a chair with a net.
A man is trying to use a net to catch a bird that flew into the house.
Just because a man is having a net, it does not mean he is trying to use it.
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 x5.(n_house(x5) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 p2 x2.(Theme(e2,p2) & Recipient(e2,x2) & Actor(e2,x1) & v_use(e2) & exists e3 e4 x3 x4.(Theme(e4,x3) & Actor(e4,x1) & v_catch(e4) & into(e3,x5) & Actor(e3,x4) & v_fly(e3) & (x3 = x4) & n_bird(x3)) & n_net(x2)) & n_man(x1))