A man alone on a gravely beach.
A man is sitting down.
the man can be sitting at the gravely beach
exists s1 x1 x2.(a_topic(x1) & on(x1,x2) & n_beach(x2) & a_gravely(s1) & Theme(s1,x2) & r_alone(x1) & n_man(x1))
exists e1 s1 x1.(a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_man(x1))