[Q]: Opal Koboi is a fictional character from the Artemis Fowl series by Eoin Colfer. After the character's introduction in in the series as a supporting antagonist, Colfer again used Koboi as the main antagonist of the fourth, sixth, and eighth books in the series, giving her the status of archenemy to Artemis Fowl II. Opal Koboi was the main antagonist of 3 books in the Artemis Fowl series.
[A]: Yes

[Q]: Sylvia McNair (born June 23, 1956) is an American opera singer and classical recitalist who has also achieved notable success in the Broadway and cabaret genres. McNair, a soprano, has made several critically acclaimed recordings and has won two Grammy Awards. McNair is known by critics for her ability to hit high notes.
[A]: It's impossible to say

[Q]: Kinsey Millhone is a fictional character who was created by Sue Grafton for her "alphabet mysteries" series of novels. Millhone appears in a number of short stories written by Grafton. Grafton's mystery novels featuring Millhone are set in 1980s Santa Teresa, a fictionalized town based on Santa Barbara, California. Millhone is not a real person.
[A]: Yes

[Q]: Magdalena Matte Lecaros (born August 13, 1950) is a Chilean civil engineer, businesswoman and politician. She is member of the Independent Democratic Union (UDI) and was part of Chile's Ministry of Housing and Urban Development under Chile's current President Sebastian Pinera for the term of 2010-2014. She is a member of the Matte family. Magdalena Matte Lecaros has been the subject of at least one public poll
[A]:
It's impossible to say