People inside a subway car hold on to the rails while people outside the subway car walk away.
There are people inside a subway car holding on to the rails.
people are people.
(x)
exists p1 x1 x6.(n_rail(x6) & exists e1 x2 x3 x4 x5.((x1 = x2) & r_on(e1) & to(e1,x6) & Actor(e1,x5) & v_hold(e1) & (x2 = x5) & inside(x2,x3) & n_car(x3) & of(x3,x4) & n_subway(x4) & n_people(x2)))