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: 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.

yes