Text: This is a list of the last World War I veterans to die by country. The last living veteran of World War I (28 July 1914 -- 11 November 1918) was Florence Green, a British citizen who served in the Allied armed forces, and who died 4 February 2012, aged 110. The last combat veteran was Claude Choules who served in the British Royal Navy (and later the Royal Australian Navy) and died 5 May 2011, aged 110. The last veteran who served in the trenches was Harry Patch (British Army) who died on 25 July 2009, aged 111. The last Central Powers veteran, Franz Kunstler of Austria-Hungary, died on 27 May 2008 at the age of 107.

Question: is anyone still alive from world war 1?
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Answer: no

Text: Although the name ''freshwater pearl mussel'' is often used for this species, other freshwater mussel species can also create pearls and some can also be used as a source of mother of pearl. In fact, most cultured pearls today come from Hyriopsis species in Asia, or Amblema species in North America, both members of the related family Unionidae; pearls are also found within species in the genus Unio.

Question: can you find a pearl in a mussel?
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Answer: yes

Text: In season 6, Stefan moves away from Mystic Falls because of Damon's death and finds a new girlfriend called Ivy. However, Enzo and Caroline, find him and Caroline tells Stefan that he's a coward and the worst friend ever. She starts crying so Enzo goes and kills Ivy. Stefan vows revenge. He comes back to Whitmore, and uses Elena's help to find Enzo leaving him to be killed by a vampire hunter. However, Enzo survives. Ivy returns as a vampire and it is revealed that Enzo had fed her vampire blood against her will before killing her. Damon, then returns to Mystic Falls and meets Stefan first which brings Stefan back to his friends. To make things worse, Enzo tells the other vampire hunter about Ivy and all the other vampires and the vampire hunter kills Ivy but is killed by Damon before the vampire hunter would kill anyone else. Enzo, figures out that Stefan's niece, Sarah is alive and that Damon had thought that he had killed Sarah before she was born but Sarah was born before her mother died however, Stefan kept this from Damon and Enzo uses this against Stefan. Meanwhile, the vampires have another threat, a psycho killer, Kai. Added on top of that, Sheriff Liz Forbes (Caroline's mother) is diagnosed with cancer. Stefan supports Caroline through this in which they bond even more and share a passionate kiss however just then Liz dies. At the funeral, Stefan realises that he has fallen in love with Caroline but before he can confess, Caroline switches off her humanity switch after the funeral. Stefan and Elena try to bring Caroline back but it fails and Caroline vows revenge for them not giving her the year she wanted without any feelings. She kidnaps Stefan and Damon's niece, Sarah Salvatore, and blackmails Stefan to turn off his humanity to save her. At the end of the episode 'The Downward Spiral', he does and joins Caroline. Stefan decides to ruin Caroline's life because she has done the same to him. He wants her to lose control and become a Ripper. He eventually is able to and they sleep together for the first time. When Lily, Stefan and Damon's mother, is rescued from the 1903 prison world and turns out to be a vampire, she manages to turn on Stefan's humanity again. However, it later is revealed that Lily lied to get him back and doesn't love her sons any more and only wants her travelling companions back. Stefan then pretends to still have his emotions off to get Caroline back and somehow succeeds, but Caroline tries to avoid him as she feels guilty for everything she had done. Stefan then also tries to talk Damon out of being a human again only to be with Elena but Damon decides to take the cure.

Question: does stefan turn his humanity back on in season 6?
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Answer: yes

Text: Superfecundation is the fertilization of two or more ova from the same cycle by sperm from separate acts of sexual intercourse, which can lead to twin babies from two separate biological fathers. The term superfecundation is derived from fecund, meaning the ability to produce offspring. Heteropaternal superfecundation refers to the fertilization of two separate ova by two different fathers. Homopaternal superfecundation refers to the fertilization of two separate ova from the same father, leading to fraternal twins. While heteropaternal superfecundation is referred to as a form of atypical twinning, genetically, the twins are half siblings. Superfecundation, while rare, can occur through either separate occurrences of sexual intercourse or through artificial insemination.

Question: is it possible for a woman to have twins with different fathers?
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Answer:
yes