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 sings the song mary did you know?" whose answer is Michael English.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who sings the song mary did you know
Useful Output:

Doc 1: Anne Wilson - Mary, Did You Know? (Official Audio) · Comments227.
Doc 2: Carrie Underwood - Mary, Did You Know? (Official Audio Video) · Comments.
Doc 3: Mary Did You Know - Sister Duet - Lucy & Martha Thomas (Official Music Video) I hope you will enjoy this beautiful Christmas song "Mary Did
Doc 4: Official Music Video for "Mary Did You Know?" featuring Chandler Moore, Lizzie Morgan & Mav City Gospel Choir. Listen to Chandler's new
Doc 5: Reba McEntire - Mary, Did You Know? (Official Audio) · Comments.