A man is kayaking in the ocean.
A person is in a boat in the water.
A man is a person. Kayaking involves being in a kayak, kind of like a boat.
exists e1 x1 x2.(n_ocean(x2) & in(e1,x2) & Actor(e1,x1) & v_kayake(e1) & n_man(x1))
exists p1 x1 x3.(n_water(x3) & exists x2.(in(x1,x2) & in(x2,x3) & n_boat(x2)) & n_person(x1))