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.

[EX Q]: Context: 'Yeah, What did think about water? ' 'I think water is great! I don't need very much for this trip, but water is delicious.' 'Okay, but water is important to me because I have health issues. So I drink more water for save my health.'
Utterance: 'Okay! You can have all the water. I want all the food.'
[EX A]: No

[EX Q]: Context: 'okay how about if i only get 2 food packages and i give you 2 firewood. So we both gets something to help us/ Because i to at least 1 firewood' 'That would work for me if I get all 3 water still' 'How about you get 2 of the waters an i would take 1 of them? I need some water to stay hydrated '
Utterance: 'If you get two foods then I need more items overall'
[EX A]: No

[EX Q]: Context: 'Not this time, I really need all the firewood and food is a large need for my family of 8. We need the firewood to cook all our meals from the animals we hunt since we are short on food.' 'But these are only additional packages☹️' 'I get that and understand completely. I have a large number of mouths to feed making the food a necessity or all the firewood to cook whatever we hunt. How many you have?'
Utterance: 'I have three.'
[EX A]:
Yes