A long-haired man in a striped shirt sits on the grass and plays acoustic guitar.
The long-haired man is a rock star
Just because a  long-haired man plays acoustic guitar it does not mean he is a rock star.
exists e1 e2 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6.(n_grass(x3) & Theme(e2,x6) & Actor(e2,x4) & v_play(e2) & n_guitar(x6) & a_acoustic(s5) & Theme(s5,x6) & in(x4,x5) & n_shirt(x5) & a_striped(s4) & Theme(s4,x5) & n_man(x4) & a_long-haired(s3) & Theme(s3,x4) & on(e1,x3) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_shirt(x2) & a_striped(s2) & Theme(s2,x2) & n_man(x1) & a_long-haired(s1) & Theme(s1,x1))
exists p1 s1 x1.(n_man(x1) & a_long-haired(s1) & Theme(s1,x1) & exists x2 x3.((x1 = x2) & n_star(x2) & of(x2,x3) & n_rock(x3)))