Teenagers are interacting with elderly people in a common room.
Everyone is indoors.
A common room is likely to be indoors
exists e1 s1 s2 x1 x2 x3.(in(e1,x3) & n_room(x3) & a_common(s2) & Theme(s2,x3) & with(e1,x2) & n_people(x2) & a_elderly(s1) & Theme(s1,x2) & Actor(e1,x1) & v_interact(e1) & n_teenager(x1))
all x1.(n_person(x1) -> exists p1 x2.((x1 = x2) & n_indoor(x2)))