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:
Al Jolson (born Asa Yoelson; May 26, 1886 October 23, 1950) was an American singer, film actor, and comedian. At the peak of his career, he was dubbed "The World's Greatest Entertainer." His performing style was brash and extroverted, and he popularized a large number of songs that benefited from his "shamelessly sentimental, melodramatic approach." Numerous well-known singers were influenced by his music, including Bing Crosby, David Bowie, Bob Dylan, Rod Stewart and others. Dylan once referred to him as "somebody whose life I can feel." Broadway critic Gilbert Seldes compared him to the Greek god Pan, claiming that Jolson represented "the concentration of our national health and gaiety." Question: What American singer, film actor and comedian, suddenly stood up during a performance of Gershwin's Liza (All the Clouds'll Roll Away) and started singing? Answer: Al Jolson
Answer:
Al Jolson born Asa Yoelson; May 26, 1886 October 23, 1950 was an American singer, film actor, and comedian.