People standing in front of mechanical equipment.
There are people standing in front of a mechanical equipment
People standing implies that there are people.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x3) & of(x3,x4) & n_equipment(x4) & a_mechanical(s1) & Theme(s1,x4) & n_front(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1))
exists p1 x1 e1 s1 x2 x3 x4 x5.((x1 = x2) & in(e1,x4) & of(x4,x5) & n_equipment(x5) & a_mechanical(s1) & Theme(s1,x5) & n_front(x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_people(x2))