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.

[EX Q]: Farrokh "Freddie" Mercury (born Bulsara; 5 September 1946 – 24 November 1991) was a British singer, songwriter and record producer, known as the lead vocalist of the rock band Queen. He was known for his flamboyant stage persona and four-octave vocal range. Mercury wrote numerous hits for Queen, including "Bohemian Rhapsody", "Killer Queen", "Somebody to Love", "Don't Stop Me Now", "Crazy Little Thing Called Love", and "We Are the Champions". He led a solo career while performing with Queen, and occasionally served as a producer and guest musician for other artists. Question: Barcelona is the second solo album recorded by a singer known for his four-octave what? Answer: vocal range
[EX A]: Farrokh Freddie Mercury born Bulsara; 5 September 1946 – 24 November 1991 was a British singer, songwriter and record producer, known as the lead vocalist of the rock band Queen.

[EX Q]: Michael Watson, {'1': ", '2': ", '3': ", '4': "} (born 15 March 1965) is a British former professional boxer who competed from 1984 to 1991. He held the Commonwealth middleweight title from 1989 to 1991, and challenged three times for a world title between 1990 and 1991. Watson's career was cut short as a result of near-fatal injury sustained during a loss to Chris Eubank for the WBO super-middleweight title in 1991. Question: Watson v British Boxing Board of Control was a case brought by the boxer who competed during what time period? Answer: 1984 to 1991
[EX A]: Michael Watson, {1: , 2: , 3: , 4: } born 15 March 1965 is a British former professional boxer who competed from 1984 to 1991.

[EX Q]: Roméo et Juliette ("Romeo and Juliet") is an opera in five acts by Charles Gounod to a French libretto by Jules Barbier and Michel Carré, based on "The Tragedy of Romeo and Juliet" by William Shakespeare. It was first performed at the Théâtre Lyrique (Théâtre-Lyrique Impérial du Châtelet), Paris on 27 April 1867. This opera is notable for the series of four duets for the main characters and the waltz song ""Je veux vivre"" for the soprano. Question: What opera that starred William Martin was based on a play written by William Shakespeare? Answer: Roméo et Juliette
[EX A]:
Roméo et Juliette Romeo and Juliet is an opera in five acts by Charles Gounod to a French libretto by Jules Barbier and Michel Carré, based on The Tragedy of Romeo and Juliet by William Shakespeare.