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.
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Question: Question: "The worst student" is the student who is bad at things. In this case, "worst" simply describes the noun. Following this logic, your "worst enemy" would be the person who is very bad at being your enemy, thus is actually your best friend. Your "worst enemy" is actually the enemy who is very good at being your enemy. Thus, in this context, "worst" acts to amplify the inherent negative intent of the noun. "Worst disaster" would be another example of this. Is this just a matter of context or there some science behind the interprettation of a negative adjective applied to a negative noun?
Answer: Don't confuse English language with the mathematical theory. The adjective worst qualifies the noun enemy with even more bad values. So, a worst enemy is more dangerous than a normal enemy.

Answer: yes

Question: Question: The B strings tuned w/ low E 7th fret harmonic-(6th string,7th fret).
Answer: The shorthand w/ is used to mean with. 2 pieces toast w/ gravy Is a shorter way of writing "Two pieces of toast with gravy." The B strings tuned w/ low E 7th fret harmonic-(6th string,7th fret). means "The B strings tuned with low E, 7th fret harmonic . . ." Edited to add: As Denis de Bernardy correctly notes in the comment below, w/o means the opposite: without.

Answer: yes

Question: Question: When to use a or an before a noun when there are adjectives before that noun? like the following example: An operator pressed the button. should that make: A professional operator pressed the button. An professional operator pressed the button. same for: A Hypertext markup language. An Hypertext markup language. Sometimes it seems a bit confusing, especially when there are more adjectives like: An omen was revealed to the priest. A terrible omen was revealed to the priest. An overwhelming terrible omen was revealed to the priest. What is the rule?
Answer: The article changes based on the word immediately following, not necessarily on the noun. There is no difference in meaning between "a" and "an" - the distinction is used to preserve an alternation between vowels and consonants when the sentence is spoken aloud. Be aware that speakers of American and British English observe different rules (mainly because we can't agree on whether to pronounce the letter H or not!) In your example: A Hypertext Markup language. An Hypertext markup language. an American speaker (and, to be honest, most British speakers) would find the first one correct, while an exaggerated aitch-dropper would use the second. In these examples: An omen was revealed to the priest. A terrible omen was revealed to the priest. An overwhelming terrible omen was revealed to the priest. all three are correct as written, whether the speaker is American or British.

Answer:
yes