A father and child enjoy the water.
A father is teaching his child to swim
A father does not need water in order to teach his child to swim.
exists e1 x1 x2 x3 x4.(n_water(x4) & Theme(e1,x4) & Actor(e1,x1) & v_enjoy(e1) & n_child(x3) & n_father(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_swim(e2)) & Theme(e1,x3) & Actor(e1,x2) & v_teach(e1) & n_child(x3) & of(x3,x1) & n_male(x1) & n_father(x2) & n_father(x1))