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.

Q: Context: 'All my girls have brought canteens. I must have enough firewood if they will earn their badge. You can have one, but I won't be able to make due without 2.' 'I could manage with one firewood and two foods, but if you have canteens for everyone, may I then have all three waters? I had planned to collect water from the river, but I'm worried I may get sick.' 'you pointed out that we will need more!  😮 i will take 2 waters'
Utterance: 'I didn't know you had supplied everyone with water before the trip. I was merely trying to look out for your needs, but you said you didn't need them!'

A: No
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Q: Context: '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 ' 'If you get two foods then I need more items overall'
Utterance: 'you will have more because you will be getting 2 firewood and i will get ! and you will get 2 waters and i get 1 and i will get 2 foods and you get one'

A: No
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Q: Context: 'You mean you can't let up one firewood for me?' '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☹️'
Utterance: '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?'

A:
Yes
****