Two children sitting by the water.
Children are near water.
if they are two children sitting by the water then they are children near water.
exists e1 x1 x2 x3.(n_water(x3) & a_topic(x1) & by(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1) & card_eq_2(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_water(x2) & a_near(s1) & Theme(s1,x2)) & n_child(x1))