question: Christopher Amott and Karen Carpenter, have which mutual occupation?
answer: singer
context: Title: The Karen Carpenter Story
  Passage: The Karen Carpenter Story is an American television film about singer Karen Carpenter and the brother-and-sister pop music duo of which she was a part, The Carpenters.  The film aired on CBS on January 1, 1989.  Directed by Joseph Sargent, it starred Cynthia Gibb as Karen Carpenter, and Mitchell Anderson as her brother, Richard Carpenter.
  Title: Karen Carpenter (album)
  Passage: Karen Carpenter is the only eponymous solo project by singer/drummer Karen Carpenter, released on CD by A&M Records in 1996.
  Title: Christopher Amott
  Passage: Christopher Amott (born 23 November 1977) is a Swedish guitarist and vocalist, younger brother of Michael Amott and founding member of the Swedish metal bands Arch Enemy and Armageddon.
  Title: Karen Carpenter
  Passage: Karen Anne Carpenter (March 2, 1950 – February 4, 1983) was an American singer and drummer, and part of the duo the Carpenters with her brother Richard.  She was critically acclaimed for her contralto vocals, and her drumming was praised by contemporary musicians and peers.
  Title: If I Had You (The Carpenters song)
  Passage: "If I Had You" is a song recorded by singer Karen Carpenter during her solo sessions in New York with producer Phil Ramone for her subsequently shelved debut solo album.  In 1989 "If I Had You" was released as a Karen Carpenter solo single (featuring Richard Carpenter's remix ending), along with "The Uninvited Guest" (an outtake from the Carpenters album "Made In America"), also credited as a Karen Carpenter solo, as its B-side (in Japan the B-side was "Lovelines", another track from Karen's solo album, also the title track from the 1989 Carpenters "Lovelines" album).  The single was the first single from the Carpenters' album "Lovelines".  As of 2016, this is also the last Carpenters single released to American radio.  The single version has also appeared on numerous Carpenters compilations since its release.  The single reached number 18 on the 'Billboard" Adult Contemporary Chart.
citations: Christopher Amott Karen Carpenter