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:
"Birthday" is a song written by LennonMcCartney and performed by the Beatles on their double album "The Beatles" (often known as "the White Album"). It is the opening track on the third side of the LP (or the second disc in CD versions of the record). The song is an example of the Beatles' return to more traditional rock and roll form, although their music had increased in complexity and it had developed more of its own characteristic style by this point. Surviving Beatles McCartney and Ringo Starr performed it for Starr's 70th birthday at Radio City Music Hall on 7 July 2010. Question: Underground Sunshine's only hit single was their cover of a Beatles song from which album? Answer: the White Album
Answer:
Birthday is a song written by LennonMcCartney and performed by the Beatles on their double album The Beatles often known as the White Album.