Task: Question Answering
Input (English): Passage: Bush's son, Bertie, featured prominently in the 2014 concert Before the Dawn. She previously had a long-term relationship with bassist and engineer Del Palmer from the late 1970s to the early 1990s.Bush is a former resident of Eltham, southeast London. In the 1990s, she moved to a canalside residence in Sulhamstead, Berkshire, and moved to Devon in 2004. Bush is a vegetarian. Raised a Roman Catholic, she said in 1999:
...I would never say I was a strict follower of Roman Catholic belief, but a lot of [powerful, beautiful and passionate images are in there.] There's a lot of suffering in Roman Catholicism. I think I'm looking for not necessarily religion, but ways of helping myself to become more understanding, more complete, a happier person [...] But I really don't think I've found a niche.
The length of time between albums has led to rumours concerning Bush's health or appearance. In 2011, she told BBC Radio 4 that the amount of time between albums was stressful: "It's very frustrating the albums take as long as they do ... I wish there weren't such big gaps between them". In the same interview, she denied that she was a perfectionist, saying: "I think it's important that things are flawed ... That's what makes a piece of art interesting sometimes – the bit that's wrong or the mistake you've made that's led onto an idea you wouldn't have had otherwise." She reiterated her prioritisation of her family life.Bush's nephew, Raven Bush is violinist in the English indie band Syd Arthur.In 2016, Maclean's reported that Bush supported Theresa May, the Conservative Prime Minister of the United Kingdom. It quoted Bush as saying: "I actually really like her and think she’s wonderful. I think it’s the best thing that’s happened to us in a long time ... It is great to have a woman in charge of the country. She’s very sensible and I think that’s a good thing at this point in time." In 2019, Bush published a statement on her website saying she had been quoted out of context and did not support the Conservative Party. She wrote: "My response to the interviewer was not meant to be political but rather was in the defence of women in power ... I said that we had a woman in charge of our country, and that I felt it was a good thing to have women in power … it could make it seem like I am a Tory supporter which I want to make clear I am not.". 
Question: What is the last name of the person who said "It's very frustrating the albums take as long as they do?"?
Output (English): Bush.