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.

Context: 'Food is of the highest preference for me! I am a diabetic and always need to be able to eat if I'm experiencing a low! How about you?' 'Food is also my highest preference, followed by firewood, with water being the lowest. I don't have a medical condition that needs food so I can give you 2 units if I can have 1?' 'That would be great if you could! '
Utterance: 'I can do that! What's your next highest priority? I would prefer 2 firewood as I need to be warm at all times and plan to camp in the cooler weather'
Yes

Context: 'I was going to say, the fire would be probably one of the few things I would be interested in! I love being warm.' 'Well you can take all the firewood if it will help, would it be ok if i get all the food in return?' 'That works for me. How would you like to divide the water?'
Utterance: 'I am ok with you taking two waters since you are new to camping, does that seem fair to you?'
No

Context: 'I don't mind taking 2 of the water as I need it for a medical condition and 2 firewood however I would like to get 1 of the food.' 'You need water the most?' 'I am constantly thirsty and having water on hand is needed. Why is gathering food an issue for you?'
Utterance: 'I am not able to get around as much to gather the food. It could require a lot of walking and I might find nothing. What if I took 2 food, 1 water, and 2 firewood, would that be good for you?'
Yes