A man with long hair and a beard is surfing.
The hippy hits the groovy waves.
A man surfing is not assumed to be a hippy who hits the groovy waves.
exists e1 s1 x1 x2 x3 x4.(Actor(e1,x1) & v_surf(e1) & with(x1,x2) & subset_of(x4,x2) & n_beard(x4) & subset_of(x3,x2) & n_hair(x3) & a_long(s1) & Theme(s1,x3) & n_man(x1))
exists s1 x1 x2 x3.(n_hit(x1) & a_hippy(s1) & Theme(s1,x1) & a_topic(x1) & n_wave(x2) & of(x2,x3) & n_groovy(x3) & (x1 = x2))