Four people hanging out on a park bench listening to one of the four play the guitar.
A guitarist practices in the park for his upcoming gig.
Just because there are people hanging out on a park bench listening to one of them play the guitar, it doesn't necessarily mean that one is a guitarist, or that he is a guitarist who practices, or that he has an upcoming gig.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_play(x7) & card_eq_4(x7) & a_topic(x1) & a_out(s1) & Manner(e1,s1) & on(e1,x3) & to(e2,x6) & of(x6,x7) & n_guitar(x8) & (x7 = x8) & n_thing(x6) & card_eq_1(x6) & Actor(e2,x5) & v_listen(e2) & (x3 = x5) & n_bench(x3) & of(x3,x4) & n_park(x4) & Actor(e1,x2) & v_hang(e1) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists s1 x1 x2 x3 x4.(n_gig(x4) & a_upcoming(s1) & Theme(s1,x4) & of(x4,x3) & n_male(x3) & n_park(x3) & a_topic(x1) & in(x1,x3) & for(x3,x4) & n_practice(x1) & of(x1,x2) & n_guitarist(x2))