an upside down man doing a flip on a waterski board
A woman in a restaurant, picking at her salad.
A man and a woman are not the same subject, and the actions of doing a flip and picking at a salad are likewise not the same.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & down(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & on(x4,x5) & n_board(x5) & of(x5,x6) & n_waterskus(x6) & n_flip(x4) & (x2 = x3) & n_man(x2) & n_upside(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x4) & n_salad(x4) & of(x4,x1) & n_female(x1) & Actor(e1,x3) & v_pick(e1) & (x1 = x3) & in(x1,x2) & n_restaurant(x2) & n_woman(x1))