A noun is a word that names a person, animal, place, idea, emotion, feeling, among others. In the sentence, there are<u> three nouns</u>: Jake, swimming, and lake.
<em>Jake</em> names a person; <em>swimming</em>, although it looks like a verb, it is actually a noun and it refers to the act, art, or practice of one that swims; and <em>lake</em> names a thing, or a large area of water.
The other words of the sentence do not act as a noun but as others parts of speech: <em>likes</em> is a verb, <em>in</em> is a preposition, <em>the</em> is an article and <em>wide</em> is an adjective.
