A couple of old people playing instruments and singing.
the old people are on their death beds watching tv
Old people on their death bed cannot be playing instruments and singing.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_sing(x6) & n_instrument(x5) & subset_of(x6,x4) & subset_of(x5,x4) & (x1 = x3) & of(x1,x2) & n_people(x2) & a_old(s1) & Theme(s1,x2) & n_couple(x1))
exists e1 p1 s1 x1 x2 x3 x4.(n_bed(x3) & of(x3,x4) & n_death(x4) & of(x3,x1) & n_thing(x1) & n_people(x1) & a_old(s1) & Theme(s1,x1) & for(p1,e1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_tv(x2) & on(x1,x3))