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.
--------
Question: Context: 'Hello! I would like more packages of food the most. What are you looking for?' 'I would need water the most as I forgot to bring enough. I can give you all my food for all of you water, if you'd like?' 'That would be amazing! So I could take all 3 packages of the food and you could have all 3 packages of the water. Now, we just need to split the firewood. Could I take 2 of the firewood leaving you with 1? I think I would need more for cooking the food. '
Utterance: 'Awesome! That does sound like a deal. I wish we had more firewood to split because I am afraid it might get cold.'

Answer: Yes


Question: Context: 'Hello how are you today? 🙂 Do you have any initial ideas on how to split everything? '
Utterance: 'I was thinking maybe I could have a majority of the fire food and you can have a majority of the water and food. '

Answer: No


Question: Context: 'How's it going?  If it's alright with you, you can have all of the water and I'll take all of the firewood.  We can work out a deal on the food as well.' 'I have circulatory issued due to a heart condition and cold quickly. I would appreciate if I could get at least 2 of the firewood. You can have 2 of the food so you won't get hungry. 🙂'
Utterance: 'I was planning on building a big bonfire for the evening.  There'd be plenty of room if you wanted to join for warmth.  I'm a bit hungry and would appreciate the extra food.  You can have all of the water if you'd like.  If you warm it by the bonfire, it may be useful to soak in to improve your circulation.'

Answer:
Yes