Two construction workers sitting on an I-beam.
Two construction worker are sitting down.
workers sitting on an I-beam implies that they are sitting.
exists e1 x1 x2 x3.(on(e1,x3) & n_i-beam(x3) & Actor(e1,x1) & v_sit(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))