A woman in a yellow shirt surfs on a pink surfboard.
An person is surfing
A woman is a person.    A person who surfs on a surfboard is surfing.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_surfboard(x4) & a_pink(s2) & Theme(s2,x4) & in(x1,x2) & n_surf(x2) & of(x2,x3) & n_shirt(x3) & a_yellow(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 x1.(Actor(e1,x1) & v_surf(e1) & n_person(x1))