Domain: music

question: Who was the original lead singer of Nightwish?
answer_text: Tarja Turunen
paraphrase: Who was the first lead singer of of Nightwish?

question: Is she still the lead singer?
answer_text: No
completed: Is Tarja Turunen still the lead singer of Nightwish?
paraphrase: Do they still have the same lead singer?

question: Who was the lead singer in 2020?
answer_text: Floor Jansen
completed: Who was the lead singer of Nightwish in 2020?
paraphrase: What was the name of the lead singer in 2020?

question: Was she also the lead singer for After Forever?
answer_text: Yes
completed: Did Floor Jansen do lead vocals for After Forever?
paraphrase: Did she also do lead vocals for After Forever?

question: What year did that band disband?
answer_text: 2009
completed: What year did After Forever disband?
paraphrase: What year did they break apart?