TASK DEFINITION: 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.
PROBLEM: Context: 'Okay. I'm willing to give in on the firewood, but I really can't give in on the water or the food. As a diabetic I have to put my health first. ' 'I can give out the food in exchange for the firewood' 'Okay. I need all of the water, if you're getting the firewood. '
Utterance: 'I can't give out all the water. I need to be hydrated as well. '

SOLUTION: Yes

PROBLEM: Context: 'Yes! I've been looking forward to this trip for a while and I'm so excited' 'Yeah me too, so apparently there are some extra supplies up for grabs we need to divvy up between us.  Do you have any thoughts on how we should do that?' 'I was thinking we can say which ones we want more? Or depending on where we are camping and our camping abilities, we might need some materials more over others'
Utterance: 'That sounds good to me!  I heard where we are going it is going to be really cold the next couple of nights so we definitely need extra firewood.  We also have a pretty big group so extra food and water would come in handy too.  So how about I take 2 of the extra firewood, 1 extra water and 2 extra food?'

SOLUTION: Yes

PROBLEM: Context: 'What about you take 1 water and the firewood.  I take 2 waters and all the food' 'That leaves me with very little. Can I have 1 water, 2 firewood, and 2 food?' 'you would get 1 water and all 3 firewood.  I would get 2 water and all 3 food.  You have one less than me but the food is worth less'
Utterance: 'I will make it work. Let's make a deal!'

SOLUTION:
No