Two construction workers are sitting up on the side of a building.
The workers are taking a break.
Sitting on the side of a building does not imply taking a break.
exists e1 s1 x1 x2 x3 x4.(n_side(x3) & on(e1,x3) & of(x3,x4) & n_building(x4) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists e1 x1 x2.(n_worker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_break(x2))