Guy riding on motorized water equipment
A woman is riding a boat.
There can be either a guy or a woman.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & n_equipment(x3) & of(x3,x4) & n_water(x4) & Theme(e1,x3) & v_motorize(e1) & n_riding(x1) & (x1 = x2) & ne_nam_guy(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_boat(x2) & n_woman(x1))