People in a tent listening to one playing a guitar.
Some people listening to music.
When people are listening to one playing a guitar, it implies they are listening to music.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & to(x2,x3) & Theme(e1,x5) & Actor(e1,x4) & v_play(e1) & n_guitar(x5) & (x3 = x4) & n_thing(x3) & card_eq_1(x3) & n_listening(x2) & a_tent(s1) & Theme(s1,x2) & n_people(x1))
exists e1 x1 x2 x3.(a_topic(x1) & to(e1,x3) & n_music(x3) & Actor(e1,x2) & v_listen(e1) & (x1 = x2) & n_people(x1))