A man standing and playing guitar to an almost empty city plaza.
A performer plays his guitar outside.
A performer does not necessarily have to be a man.  Outside does not necessarily mean a city plaza.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x3,s1) & to(x3,x4) & n_plaza(x4) & of(x4,x5) & n_city(x5) & a_empty(s2) & Theme(s2,x4) & r_almost(x4) & n_guitar(x3) & Actor(e1,x3) & v_play(e1) & subset_of(x1,s1) & n_standing(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_outside(x2) & of(x2,x3) & n_guitar(x3) & of(x2,x1) & n_male(x1) & n_performer(x1))