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: Consider Input: Question: This question comes from a quiz but I could not find the correct answer. 
Answer: The indefinite determiner "a" represents all things in a given category rather than the more specific definite determiner "the". So, if you were to ask me, "Every Hiker climbed a hill" represents a specific group of hikers who climbed non-specific hills and not the same hill. If the sentence said, If every hiker had climbed the hill, it would be only one hill.

Output: no


Input: Consider Input: Question: This phrase is all over the internet. They will say that something is free as in 'free beer' and free as in 'free speech'. I have never really understood this. Are these the examples of two different types of 'free'? 
Answer: Wikipedia on Gratis versus Libre: Gratis versus libre is the distinction between two meanings of the English adjective "free"; namely, "for zero price" (gratis) and "with few or no restrictions" (libre). The ambiguity of "free" can cause issues where the distinction is important, as it often is in dealing with laws concerning the use of information, such as copyright and patents. And further: With the advent of the free software movement, license schemes were created to give developers more freedom in terms of code sharing, commonly called open source or free and open source software. As the English adjective free does not distinguish between "for zero price" and "liberty", the phrases "free as in free beer" (gratis, freeware) and "free as in free speech" (libre, free software) were adopted. [...] "Free software is a matter of liberty, not price. To understand the concept, you should think of free as in free speech, not as in free beer." Richard Stallman Emphasis added.

Output: yes


Input: Consider Input: Question: Possible Duplicate: When is "L" doubled? If I am using the word model in the context of financial models and the UK, then which of these words should I use? Also, are there any key difference in the meanings of the two? 
Answer: There is no difference in meaning. The single-L spelling is more common in the United States; the double-L spelling is more common in the United Kingdom, Australia, South Africa and New Zealand. I don't know which is more common in other countries.


Output: yes