Several employees working on an underground rail track.
Several sad employees working on an underground rail track.
It is difficult to tell if people are sad, happy, or experiencing any other emotion just by looking at them.
exists e1 s1 s2 x1 x2 x3.(on(e1,x2) & n_track(x2) & of(x2,x3) & n_rail(x3) & a_underground(s2) & Theme(s2,x2) & Actor(e1,x1) & v_work(e1) & n_employee(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 s2 s3 x1 x2 x3.(on(e1,x2) & n_track(x2) & of(x2,x3) & n_rail(x3) & a_underground(s3) & Theme(s3,x2) & Actor(e1,x1) & v_work(e1) & n_employee(x1) & a_sad(s2) & Theme(s2,x1) & a_several(s1) & Theme(s1,x1))