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: 'How are you today? Did you have any preferences on the supplies we will be trading?' 'I am good. How about yourself? I think I would like some firewood to start off with. We like to have bigger fires. What about you?' 'I am good as well. That is good to hear that you like to have bigger fires as we do not care much for that. We would much rather have some extra water.'
Utterance: 'Water is a little important to us too though , if possible maybe we can split that or maybe we can get some more food in replacement.'

Answer: No


Question: Context: 'Hi there! How are you?' 'Great! I'm very excited to go camping, how about you?' 'I am! Now, I need a lot of firewood because we were planning on burning some earlier (to start cooking meals and such). I also need some extra food in case bugs come and eat some (like last trip, ugh). How about I take 2 firewood, 2 food, and you take 3 water, 1 firewood, and 1 food?'
Utterance: 'Would you be open to taking 1 less firewood, I would give you 1 food for it. The weather is supposed to be extra chilly and we did not bring warm enough sleeping bags so we need the extra firewood to avoid freezing to death!'

Answer: Yes


Question: Context: 'Okay, you can take two and I will take one. ' 'Okay that's great' 'Can I take all three bundles of firewood so I can boil some of the water? '
Utterance: 'Sorry, I want some firewood, I planned to enjoy this chill climate using firewood'

Answer:
Yes