Three teenagers in a subway playing around.
Three people inside.
Teenagers are people, and in is inside.
exists e1 s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & a_around(s1) & Manner(e1,s1) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_subway(x2) & n_teenager(x1) & card_eq_3(x1))
exists x1.(a_topic(x1) & r_inside(x1) & n_people(x1) & card_eq_3(x1))