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: "What was the nickname of grandfather of the man that married the former Carol Shepp in 1965?" whose answer is Slew.
Each document should contain about 30 words, and these documents should contain useful information.

Query: John McCain grandfather nickname
Useful Output:

Doc 1: His grandfather, John S. McCain Sr., called “Sid” or “Slew,” was the first of the family to attend the United States Naval Academy, and the
Doc 2: McCain (DDG 56) in a ceremony on board, July 12. Commissioned in 1994, the destroyer already bears the names of Sen. McCain's father, Admiral
Doc 3: Grandfather: Admiral John S. “Slew” McCain Sr. was born in 1884 and  name, rank, serial number, and date of birth—the big four and
Doc 4: McCain's paternal grandfather, Admiral John S. McCain, Sr., had been the commander of the South Pacific Force during the 1942 Solomon Islands
Doc 5: 1936_john_mccain_gallery_gty_1160.jpg. John Sidney McCain III sits on the lap of his grandfather, Adm. John S. McCain Sr., in a family