A man in bright clothing plays an instrument on the street.
A musician in colorful clothes plays a trumpet outside.
Just because a man plays an instrument does not necessarily  mean he is a musician.  Not all bright clothing is colorful. Not every instrument is a trumpet, he could be playing a different kind of instrument.
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & on(x3,x4) & n_instrument(x3) & in(x1,x2) & n_clothing(x2) & a_bright(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_outside(x3) & of(x3,x4) & n_trumpet(x4) & in(x1,x2) & n_clothes(x2) & a_colorful(s1) & Theme(s1,x2) & n_musician(x1))