A large group of church choir singers on a balcony.
They are singing a hymn.
A church choir can sing other songs that are not a hymn..
exists e1 s1 x1 x2 x3 x4.(on(e1,x4) & n_balcony(x4) & Actor(e1,x1) & v_singer(e1) & of(x1,x2) & n_choir(x2) & of(x2,x3) & n_church(x3) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_sing(e1) & n_hymn(x2))