The input is taken from a negotiation between two participants who take the role of campsite neighbors and negotiate for Food, Water, and Firewood packages, based on their individual preferences and requirements. Given an utterance and recent dialogue context containing past 3 utterances (wherever available), output Yes if the utterance contains the self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

Input: Consider Input: Context: 'Good!  How are you?  Ready to go camping?' 'I'm doing well. I can't wait to go camping' 'I am usually not much of a camper!  I will start with an offer if that is ok with you.'
Utterance: 'sure'

Output: No


Input: Consider Input: Context: 'I am going camping too.  May I ask where you are going canoe camping?' 'We are going to camp in Oregon.  We are looking forward to it.  The views and scenery should be gorgeous.  How about you?' 'I am going to the Allegheny mountains in Pennsylvania.  I'm going to be hiking a lot so I will need some extra food.  Let's balance out the food and water somehow....'
Utterance: 'Sounds good.  We will also be hiking a bunch and I have little kids who go through water and food like crazy.'

Output: No


Input: Consider Input: Context: 'Yes and as a return ill give you 70 percent of what I get-- So with me managing the firewood for you, you will get more time with the kids.' 'That's so nice of you! I would just feel more secure if I kept 2 of the firewood with me while you are out though, just in case of emergency. You wouldn't need it just for the few hours you would be gone. ' 'If that were the case I would need extra food since I would be behind trying to get more firewood..  '
Utterance: 'That makes sense. I would be willing to split the extra food package with you when you get back to camp. Then we would be even all the way around.  '


Output: No