Several construction workers are looking at an escalator
Construction workers admire an escalator they just installed.
Because the construction workers are looking at an escalator doesn't mean that they installed it.
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_escalator(x3) & Actor(e1,x1) & v_look(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2) & a_several(s1) & Theme(s1,x1))
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_admire(e2) & a_just(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x1) & v_install(e1) & (x3 = x4) & n_thing(x1) & n_escalator(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))