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:
The Royal Exhibition Building is a World Heritage Site-listed building in Melbourne, Australia, completed in 1880. It is located at 9 Nicholson Street in the Carlton Gardens, flanked by Victoria, Carlton and Rathdowne Streets, at the north-eastern edge of the central business district. It was built to host the Melbourne International Exhibition in 188081 and later hosted (in the Western annex) the opening of the first Parliament of Australia in 1901. Throughout the 20th century smaller sections and wings of the building were subject to demolition and fire; however, the main building, known as the Great Hall, survived. Question: What year did flower show that is, held annually in the same site as the Royal Exhibition Building in Melbourne, Australia, begin? Answer: 1995
Answer:
The Royal Exhibition Building is a World Heritage Sitelisted building in Melbourne, Australia, completed in 1880.