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: "When did the American singer-songwriter who sang "Welcome to New York" born?" whose answer is December 13, 1989.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Billy Joel birth year
Useful Output:

Doc 1: Born William Martin Joel on May 9, 1949 he is a singer-songwriter, composer, and pianist. Commonly nicknamed the "Piano Man" after his first major hit.
Doc 2: Billy Joel was born on May 9, 1949. He celebrated his 75th  The same year, the couple's daughter Della Rose Joel, was born. The
Doc 3: He was born on May 9 1949 in the Bronx. He is an American legend, with over 150 million albums sold.
Doc 4: Born William Martin Joel in 1949, Billy Joel began studying piano at just four-years-old. 10 years later, he joined his first band The Echoes,
Doc 5: Born. May 9, 1949 · The Bronx, New York City, New York, USA · Birth name. William Martin Joel · Nicknames. The Piano Man; Joe; Mr. Long Island · Height. 5′ 5″ (