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 really hungry and thirsty and want some food and water if that's ok with you. '
Utterance: 'Well some is okay but not all. The thing is that we left in a hurry and forgot to pick up the bag with the extra food items. I am sorry but we have kids with us so we will need the food. Am sure you understand ☹️'
Example Output: Yes

Example Input: Context: 'Sounds great!' 'Ok, my proposal is to give you all the firewood you need, on the condition that you give me all the water I need. And regarding food we can negotiate.' 'That sounds good. What do you propose on the food?'
Utterance: 'My proposal is to give you 3 firewood, 2 food and 0 water. What do you think of the deal?'
Example Output: No

Example Input: Context: 'hi, we may be in luck then, i really would like water as i enjoy walking and hiking, i will require some firewood though so i can roast some s'mores' 'How many people are in your camping party?' 'i have 6, and 2 more could be joining us to make 8 '
Utterance: 'Cool! 🙂  It's a good number, we are planning on 10, but you never know on these.  What I do know is this group loves to eat and hike, plus it might get a little chilly.'
Example Output:
No