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.

Q: Question: What is the difference between "parentheses" and "parenthesis"? 
Answer: Parenthesis is of course Greek and means in fact "insertion". It has taken the meaning of the signs " ( " or " ) ". Parentheses is the regular plural. Usually, you use a pair of the signs showing an insertion, then "between parentheses" - or brackets ; however, "in parenthesis" means : as an afterthought.

A: yes
****
Q: Question: A friend posed the following word puzzle to me: Can you think of a sentence that keeps the same meaning whether you use "it's" or "its"? He asserted that this puzzle does in fact have a solution. However, it has me completely stumped. I tried to solve an easier problem, to find a sentence which is still grammatical if you change an "its" to "it's", but all I could come up with is examples like "It's light!" (which is, strictly, more of a sentence fragment). What is the solution to the word puzzle? Or, is there some way I can "prove" that the puzzle should have no solution? 
Answer: 'It's just what its supposed to be.' or 'Its just what it's supposed to be.'.

A: no
****
Q: Question: I would tend to write double-l, but Google gives me more single-l, so I'm guessing it's an Atlantic divide thing. And I guess all the other *full words. 
Answer: Only full is spelled with two Ls. All other -ful words are spelled with only one L: helpful, successful, skillful, beautiful.

A:
no
****