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: 'no its not i give you i water i get 1 food and 1 firewood' 'We only have 3 of each to divide up.. so yes, you're going to have to give me one more on an item.. but in exchange I'm giving you 1 more on two different items.  I'm getting 4 items in total, you're getting 5.. - You're essentially netting 11% more 'items' than I am in this deal. ' 'thats the point as you need water so badly'
Utterance: 'Correct.. I do.. but if you're not willing to budge on this where you're still netting more overall value I understand - I'm bummed but I understand.'
Example Output: No

Example Input: 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!'
Example Output: Yes

Example Input: Context: 'Hello hood to see a fellow camper.  How are you doing today?🙂' 'Hey! I'm doing great, how are you? '
Utterance: 'Looking forward to doing some serious hiking with the family.  bad luck on the way here we flew in and the airline loss or bags with some of our supplies and sleeping bags.☹️'
Example Output:
Yes