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.

Example Input: Context: 'I am running low on firewood. I need more to keep the fire going and cook food. '
Utterance: 'Yeah I need firewood too. It's only 50 degrees at night on the mountain, even in the summer.'
Example Output: Yes

Example Input: Context: 'Wood is my highest priority. I need it to stay warm. I'm very cold-natured. What is your highest priority? 🙂' 'Oh that's good. Wood is not my highest priority since I get hot easily lol. My highest priority is probably food because I have a very high metabolism and get very hungry' 'I understand that. I also need food though, because I need the sustenance to help warm me up. So maybe 3 firewood 1 food and 2 waters for me?'
Utterance: 'I still don't think that is too fair though, since you would be getting 6/9 of the extra items and I would only be getting 3... I'm not an avid camper so I need extra amenities to make sure I survive haha. I am flexible on the water though - maybe we can compromise there. I am fine with you having all of the wood. Maybe we could give you 3 firewood, 1 food, and 1 water?'
Example Output: Yes

Example Input: Context: 'Good afternoon. Ok, water is a medium need for me. I have some to get by. I really need firewood. It's cold.' 'I'd be willing to give up all the firewood in exchange for the water. I also am low on Food and would need at least 2.' 'That doesn't sound like something I can agree to. Do you have any other ideas?'
Utterance: 'I can keep 2 of the firewood then and offer you 2 of the food. I'd take the water, 2 firewood and 1 water'
Example Output:
No

