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: 'hi' 'Looking forward to camping' 'same, i love to camp'
Utterance: 'What do you need most when camping? I hate splitting wood, so  I need firewood'

A: Yes
****
Q: Context: 'That's fair, but I have wiggle room on the water, how about I take two food, two firewood and you take 3 water, 1 food, 1 firewood?' 'Is there anyway you will go with that I get two firewood? I need food the most but since you get most of that can I get most of the firewood? So 1 food, 2 firewood, and 2 water for me?' 'You drive a hard bargain. I could really use that firewood. It's going to get cold tonight and these sleeping bags are not worth the price I paid ;)'
Utterance: 'Haha, I know but I am in the same situation! ☹️ and since I am getting less food I feel like it is fair I get on more firewood since I truly need that 🙂'

A: No
****
Q: Context: 'Well I didn''t bring any with me so I really need two.  I am willing to give you 2 waters.🙂' 'I also need the water, because it's not safe to drink from streams here.  ' 'You are right, my water is dirty also but I am willing to let you have all three water. I would rather eat, so I would like 2 food.'
Utterance: 'Well, if I have to catch fish to eat, I'll need the firewood to cook them.'

A:
Yes
****
