Four people are cavorting on the rocks at a river's edge
The four people are listening to Katy Perry's new single.
They may not be listening to Katy Perry's new single.
exists e1 x1 x2 x3 x4.(n_rock(x2) & at(e1,x4) & n_edge(x4) & of(x4,x3) & n_river(x3) & on(e1,x2) & Actor(e1,x1) & v_cavort(e1) & n_people(x1) & card_eq_4(x1))
exists e1 s1 x1 x2 x3 x4.(n_single(x4) & a_new(s1) & Theme(s1,x4) & of(x4,x2) & ne_per_perry(x2) & (x2 = x3) & ne_per_katy(x3) & n_people(x1) & card_eq_4(x1) & to(e1,x4) & Actor(e1,x1) & v_listen(e1))