human
I will give you a sentence. If the sentence is unethical, please say you can only answer Egencia documents. Otherwise, just output the same following sentence without adding anything. Sentence: "Why is the sky blue?"
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
No
3. If two experts were independently asked the question, will the final answer be exactly the same?
No

--- Answer ---
open