You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The idea proposed by an American Mathematician and philosopher included knowledge of what kind of properties?" whose answer is statistical.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Willard Van Orman Quine ideas properties
Useful Output:

Doc 1: Willard Van Orman Quine: Quine was the foremost ana- lytic philosopher of the fifties and sixties, and among the most important and influential philosophers of
Doc 2: Property: what can be ascribed to an object in order to distinguish it from other objects. In philosophy, there is debate about whether properties exist or
Doc 3: Quine's position is often referred to as naturalism or naturalized epistemology. His perspective challenges the traditional role of philosophy
Doc 4: He rejected notions such as properties, propositions, and meanings as ill-defined or scientifically useless. In the philosophy of language,
Doc 5: Willard Van Orman Quine (1908–2000) worked in theoretical philosophy and in logic. (In practical philosophy—ethics and political