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: "who owns the cliff house in san francisco?" whose answer is Dan and Mary Hountalas.
Each document should contain about 30 words, and these documents should contain useful information.

Query: notable cliff houses in san francisco owners
Useful Output:

Doc 1: Like wealthy-engineer-turned-mayor Adolph Sutro—who didn't construct the first Cliff House but built the streetcar line that made it an
Doc 2: After the artifact auction, the National Park Service, which has owned the Cliff House since 1977, allowed WNP to use the building as a
Doc 3: In 1881, Adolph Sutro, the self-made millionaire, philanthropist, and later mayor of San Francisco, bought the Cliff House from the original
Doc 4: CC Butler and Senator John Buckley opened the first Cliff House in 1863. The restaurant was housed in a modest structure perched on the cliff at the end of
Doc 5: Man rescued from cliff near San Francisco's Cliff House. Additional Cliff House-related personal property is being sold by Rabin Worldwide on