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: When a user wants to delete something on a website, I would like to display a message for him/her to confirm. Which of the following is the grammatically correct way to say so? Are you sure to delete this item? or Are you sure you want to delete this item? 
Answer: Are you sure to delete this item? Sure means "certain, without doubt". Therefore this asks if they are definitely going to delete the item. This isn't something to ask the user; if anything it's something for the user to ask about the program; "will it definitely be gone". Are you sure you want to delete this item? This asks not about what will happen (which is a question about the program) but what is desired (which is a question for the user). This is the one to go for.

Output: yes


Input: Consider Input: Question: For example, my friend's anniversary is on 3rd August (03/08/2016-dd/mm/yyyy). If I interchange the Month and Day digit and write 08/03/2016 meaning 8th March, is there any special word for this kind of date in English? Like 'Reverse Date' or something. Ignoring the dates after 12th. Editing: I am not confused about date formats here. Think it like, If I want to wish my friend on 8th of March (instead of 3rd August), what should I say him? Like: 'Happy Reversed Anniversary'!? 
Answer: While it's difficult to prove a negative, having grown up speaking English and being fairly well-read, I feel safe saying: No, there is no commonly used word for this that would immediately be understood by the majority of people.

Output: yes


Input: Consider Input: Question: Possible Duplicate: "Did it close" vs "Has it closed"? As a English non-native speaker it is difficult for me to understand when I must use present perfect or past simple because in my official language there isn't the present perfect tense. I know that present perfect is related to something that happened in the past but its result is important now. But for instance: The message has been sent. The message was sent. Please help me point me out any examples/contexts where I should use 1. instead of 2. 
Answer: Think of the past tense as referring to an event that took place at a particular time in the past. In saying The message was sent, the speaker will normally have in mind something like yesterday or last week. The present perfect is called 'present' for a reason. The speaker is talking about the situation now, a situation in which a past event has some bearing on the present. For example, The message has been sent might be followed by a comment such as so it's too late to do anything about it now.


Output: no