A man with glasses is playing an electric guitar.
There are people playing musical instruments.
they said a man not people playing musical instruments
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_guitar(x3) & a_electric(s1) & Theme(s1,x3) & with(x1,x2) & n_glass(x2) & n_man(x1))
exists p1 x1 e1 s1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_instrument(x4) & a_musical(s1) & Theme(s1,x4) & (x2 = x3) & n_people(x2))