Two shirtless men balance on scaffolding.
Two shirtless men working.
Men on a scaffolding implies men working.
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_scaffolding(x3) & n_balance(x1) & of(x1,x2) & n_man(x2) & a_shirtless(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1.(Actor(e1,x1) & v_work(e1) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1) & card_eq_2(x1))