several workers standing in a partially constructed building behind street sign
Workers are hammering on building walls.
just because the workers are standing does not mean they are hammering.
exists e1 e2 s1 x1 x2 x3 x4.(in(e1,x2) & behind(x2,x3) & n_sign(x3) & of(x3,x4) & n_street(x4) & n_building(x2) & Theme(e2,x2) & v_construct(e2) & r_partially(x2) & Actor(e1,x1) & v_stand(e1) & n_worker(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(on(e1,x2) & n_wall(x2) & of(x2,x3) & n_building(x3) & Actor(e1,x1) & v_hammer(e1) & n_worker(x1))