In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Let me give you an example: North Willingham is a village and civil parish in the West Lindsey district of Lincolnshire, England. The population of the civil parish (including Sixhills) was 181 at the 2011 census. It is situated 3.5 mi east from the town of Market Rasen on the A631 road between Market Rasen and Louth. Question: Which had a bigger population at the 2011 census, North Willingham or Market Rasen? Answer: Market Rasen
The answer to this example can be: Fact_1: North Willingham is a village and civil parish in the West Lindsey district of Lincolnshire, England. Fact_2: The population of the civil parish including Sixhills was 181 at the 2011 census.
Here is why: Here, we can see that both generated facts are helpful in answering question.

OK. solve this:
Fleetwood Mac are a British-American rock band, formed in London in 1967. The band have sold more than 100 million records worldwide, making them one of the world's best-selling bands of all time. In 1998, selected members of Fleetwood Mac were inducted into the Rock and Roll Hall of Fame, and received the Brit Award for Outstanding Contribution to Music. Question: Shape Shifter is the twenty-first studio album (thirty-sixth album overall) by who, "Gypsy Queen", a Szabo hit from 1966 covered by Santana in 1970 as a medley with Fleetwood Mac's "Black Magic Woman", Fleetwood Mac are a British-American rock band, formed in London in 1967? Answer: Santana
Answer:
Fleetwood Mac are a BritishAmerican rock band, formed in London in 1967.