question: What is the answer: What was the first robotic probe to land on the Moon and return a sample to Earth?
answer: luna 16

question: What is the answer: Who was the pilot of the US Airways plane that landed on the Hudson River in January 2009?
answer: chesley sullenberger

question: What is the answer: Mustafa Kemal Ataturk (1881-1938) was first president and is regarded as founder of which republic?
answer: turkey

question: What is the answer: What bird is also called the green plover or peewit
answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
lapwing