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.

Example Input: Question: I am writing a resume. I want to specify that I started my education in 2009 and as of now I am at the 4th grade (in other words, still learning), so how should I specify that in resume: 2009 - present 2009 till now Any suggestions? 
Answer: On resumes, the most common way to indicate that a period is ongoing is either 2009 present or 2009 to present The en dash is the preferred punctuation. Many word processors replace a double hyphen with an en dash once the next word is typed.
Example Output: yes

Example Input: Question: Possible Duplicate: Which is the proper spelling: "disfunction" or "dysfunction"? What's the rationale behind dysfunctional being spelled dys- and not dis-? 
Answer: From WordReference.com on Dysfunction vs. Disfunction: dys- is a Greek prefix meaning "bad", "abnormal", "difficult", or "impaired". dis- is a Latin prefix with none of the above meanings. dys- has the right meaning, but function is a Latin word. Hence the confusion. Latin dis- can mean "lack of", "not", "opposite of", "away from". This all explains why something dys-functional has a bad or abnormal function, rather than a lack of function that dis-functional implies.
Example Output: yes

Example Input: Question: E.g. is short for exempli gratia, and is in common use to introduce an example within a sentence. Submit a sample of academic writing, e.g., a dissertation chapter. However, some authors use ex. or ex: (short for "example") for the same purpose, and this form is listed in some authorities like the Wiktionary. Submit a sample of academic writing, ex: a dissertation chapter. I know they both roughly mean "example", but which one should I use, and when? Are there connotations associated with one or the other? This question has been asked elsewhere, and this very answer comes up when you ask Google about the difference. It would be good to get an EL&U answer for it. 
Answer: E.g. is short for exempli gratia and stands for "for example". Ex., if used to mean the same, is incorrect. Mostly ex. is used as short for exercise and not "for example".
Example Output:
yes