A man paddling in water.
The man is in a rowboat.
A man paddling in water is not always in a rowboat.
exists x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_water(x3) & n_paddling(x1) & of(x1,x2) & n_man(x2))
exists p1 x1.(n_man(x1) & exists x2.(in(x1,x2) & n_rowboat(x2)))