Four elderly people sitting under a white tent playing musical instruments.
the four teens are playing their guitars in front of their school.
The four people must either be teens or elderly people.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(x1) & under(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_play(e2) & n_instrument(x5) & a_musical(s3) & Theme(s3,x5) & (x3 = x4) & n_tent(x3) & a_white(s2) & Theme(s2,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1) & a_elderly(s1) & Theme(s1,x1) & card_eq_4(x1))
exists e1 x1 x2 x3 x4.(n_school(x4) & of(x4,x1) & n_thing(x1) & n_thing(x1) & n_guitar(x2) & of(x2,x1) & n_teens(x1) & card_eq_4(x1) & in(e1,x3) & of(x3,x4) & n_front(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))