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.
One 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
Solution is here: 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.
Explanation: Here, we can see that both generated facts are helpful in answering question.

Now, solve this: James Nicholas Callis (born 4 June 1971) is an English actor. He is best known for playing Dr. Gaius Baltar in the re-imagined "Battlestar Galactica" miniseries and television series, and Bridget Jones' best friend in "Bridget Jones's Diary" and "". He later reprised the role in 2016, in "Bridget Jones's Baby." He joined the cast of the TV Series "Eureka", on Syfy, in 2010. In 2017 he voiced the character Alucard on the Netflix series "Castlevania", based on the video game of the same name. Question: The TV series James Callis joined in 2010 premiered on what date? Answer: July 18, 2006
Solution:
He joined the cast of the TV Series Eureka, on Syfy, in 2010.