An elderly man plays guitar for money on the street.
An old man busks.
busks is another way to say plays guitar for money
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & for(e1,x3) & on(x3,x4) & n_money(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & n_man(x1) & a_elderly(s1) & Theme(s1,x1))
exists s1 x1 x2.(a_topic(x1) & n_busk(x1) & of(x1,x2) & n_man(x2) & a_old(s1) & Theme(s1,x1))