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: 'Hello, I'm having a wonderful day.🙂 Thanks for asking. I hope yours is a wonderful day as well. I would like 2 firewood, 2 water, and 1 food. How about you?' 'Glad to hear it! I am really looking to get extra firewood, so I would like to make a compromise. If I gave you all the food, could I have more firewood?' 'I like watching the camp fire all night. What is your reason for needing more firewood?'
Utterance: 'That does sound very nice. I would like more in order to stay warm, and for cooking some delicious food.'
Example Output: Yes

Example Input: Context: 'Great so we are on the same page. Ill take two fire wood, one water, and one food.' 'Okay! Then it's a deal! 🙂' 'Ok you will get one fire wood, two waters, and two foods'
Utterance: 'Yes! That is correct! 🙂'
Example Output: No

Example Input: Context: 'I would give you all of the additional food if you gave me all of the additional water. ' 'That sounds like a deal' 'Shall we divide the firewood two to one? '
Utterance: 'sure as long as I am getting two wood.   It gets very cold at night where I go camping'
Example Output:
Yes

