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.
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Question: Context: 'Hello, are there any of the three items that you want to be sure you have enough of? 🙂' 'I want to be sure that I have enough firewood.  I want to relax, sit around the campfire, and roast hot dogs and marshmallows.  What about you?' 'That sounds great! I like all three items, but I definitely want to make sure I have enough water, especially to drink and stay hydrated and full of as much energy as possible. I require a lot of liquid as a 6-foot-4, 260-pound guy!'
Utterance: 'I don't think the weather is going to be that hot, and I don't plan on doing any hiking.  So, I should need much extra water.'

Answer: Yes


Question: Context: 'Hi, I need the all food package. I will frequently feel hungry' 'I can give you two of the packages if you're willing to give me all 3 of the firewood. I left mine out in the rain a couple of nights ago so its all ruined.' 'If I will give 2 firewood for you and I will take all the food package with 2 water.'
Utterance: 'I need all 3 firewood! But I'm willing to discuss food with you. I have a lot of that.'

Answer: No


Question: Context: 'Yes!  Would you mind sharing your highest priority item with me?  My most valued item right now is Food actually' 'I am willing to share everything.' 'Awesome.  I would prefer getting 3 of my highest priority item though, and maybe you could get 3 of your highest priority item?'
Utterance: 'I  wood really like the firewood as I am afraid of the dark and would like my fire to last all night. '

Answer:
Yes