Three people gardening in a backyard.
People watering garden
not all people are in a backyard.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_backyard(x3) & Actor(e1,x2) & v_garden(e1) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_water(e1) & n_garden(x3) & (x1 = x2) & n_people(x1))