A large amount of people crowded into a subway system.
The people are crowded on the subway.
Crowded on the subway is a rephrasing of crowded into a subway.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & into(e1,x4) & n_system(x4) & of(x4,x5) & n_subway(x5) & Theme(e1,x3) & v_crowd(e1) & (x2 = x3) & n_people(x2) & n_amount(x1) & a_large(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_subway(x2) & n_people(x1) & on(e1,x2) & Theme(e1,x1) & v_crowd(e1))