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: 'That sounds good but I need two foods please.' 'Hmm. :( How about I get 2 food and you get 1? That way it'll be slightly more equal' 'Since you are getting two firewoods I need two foods Let's deal on this.'
Utterance: 'Ok. Then how about I get two waters. I need the food, too. I got four mouths to feed. '
Example Output: No

Example Input: Context: 'Hello, how are you doing today?' 'Very good. How about you?'
Utterance: 'I'm doing well. I'm looking forward to going on my camping trip but will need some additional items to make sure the trip is safe, healthy, and enjoyable. '
Example Output: No

Example Input: Context: 'I would take 2 packages of firewood and 1 each of water and food. Let me know your thoughts.' 'I actually need 2 packages of firewood for making more fires when camping.' 'I can't take cold and would badly need to have more firewood.'
Utterance: 'I need more firewood to keep my food going.'
Example Output:
Yes