Definition: Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.
Input: Question: I was wondering what "take a stab at doing something" means? For example I'll take a stab at answering these. 
Answer: As everybody has said, to take a stab at means to attempt. I want to additionally note here that I believe it to be related to the idiom stab in the dark, meaning an attempt at something with little guidance or hope of success. It doesn't carry the full weight of that meaning, though, just an attenuated implication of not necessarily knowing what one is doing, more likely used as mild self-deprecating humor than anything else.

yes