Two men are working together on a ladder.
Two men build a ladder together.
You can't infer they are going to build
exists e1 s1 x1 x2.(on(e1,x2) & n_ladder(x2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1) & n_man(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(a_together(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & n_ladder(x2) & n_man(x1) & card_eq_2(x1))