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: 'The weather is going to be really hot. Could I have 2 water in exchange for you receiving 2 food and 2 firewood?' 'I have a low immune system and need to stay warm how about I get all 3 firewood in exchange for the 2 water. ' 'I will agree to 3 firewood for 2 water. Maybe I should extra food though so 2 food for me🙂'
Utterance: 'I can agree to 2 food. You get 2 and I will get 1 food. That sounds fair to me. 🙂'
Example Output: No

Example Input: Context: 'Camping yay!' 'Hello! how are you? hoping today is finding you well. I was wondering if I can get all 3 of your Firewood, I am willing to trade for all 3 waters. I am camping with 40 kids, its our annual youth camp. its rainy season too, I really want to ensure I have enough dried wood with us. need lots of firewood for the amount of cooking I will be doing, keep the camp warm, and specially to keep those pesky bugs away. what do you think?'
Utterance: 'I could really use the firewood too, it will be very cold where we are going. Since it will be cold, we will not be drinking much water. How about 2 firewood for you, 3 food for me?, '
Example Output: Yes

Example Input: Context: 'hi, I'm looking forward to going camping soon' 'Me too! Camping is so much fun'
Utterance: 'I will want to get some extra supplies before I go. '
Example Output:
No