There are two workers climbing a structure.
Two workers sit in their workvan.
the two workers are either climbing or sitting
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_climb(e1) & n_structure(x4) & (x2 = x3) & n_worker(x2) & card_eq_2(x2))
exists e1 x1 x2.(in(e1,x2) & n_workvan(x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_sit(e1) & n_worker(x1) & card_eq_2(x1))