In this task, you are given a question and an answer. Answer "Yes" if the given answer correctly answers the question, otherwise answer "No".

[EX Q]: how are glacier caves formed?, Answer: A glacier cave is a cave formed within the ice of a glacier .
[EX A]: Yes

[EX Q]: what is lean manufacturing and who developed, Answer: Lean manufacturing is a management philosophy derived mostly from the Toyota Production System (TPS) (hence the term Toyotism is also prevalent) and identified as "Lean" only in the 1990s.
[EX A]: Yes

[EX Q]: who wrote the song cocaine, Answer: "Cocaine" is a song written and recorded by JJ Cale in 1976, but also known as a cover version recorded by Eric Clapton .
[EX A]:
Yes