a man walking the streets while playing the guitar.
A strolling minstrel plays guitar on Bourbon Street for tips.
Not all men are a strolling minstrel.  Not all streets are named Bourbon Street.  Playing the guitar is not always done for tips.
exists e2 e1 x1 x2 x3 x4.(n_guitar(x4) & n_street(x3) & a_topic(x1) & while(e1,e2) & Theme(e2,x4) & Actor(e2,x2) & v_play(e2) & Theme(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4 x5.(ne_geo_street(x3) & (x3 = x4) & ne_geo_bourbon(x4) & for(e2,x5) & n_tip(x5) & on(e2,x3) & Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & n_guitar(x2) & n_minstrel(x1) & Actor(e1,x1) & v_stroll(e1))