A punk rocker screaming on stage at concert.
The punk rocker has a purple mohawk.
The man doesn't necessarily have a purple mohawk, even though he's a punk rocker.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & at(e1,x5) & n_concert(x5) & on(e1,x4) & n_stage(x4) & Actor(e1,x3) & v_scream(e1) & (x1 = x3) & n_rocker(x1) & of(x1,x2) & n_punk(x2))
exists e1 s1 x1 x2 x3.(n_rocker(x1) & of(x1,x2) & n_punk(x2) & Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & n_mohawk(x3) & a_purple(s1) & Theme(s1,x3))