A man in a blue bodysuit surfing.
There is a man surfing.
A man is surfing.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_surfing(x2) & of(x2,x3) & n_bodysuit(x3) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1 x2 x3.((x1 = x2) & n_surfing(x2) & of(x2,x3) & n_man(x3))