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.

Ex Input:
Context: 'I understand I have an always hungry toddler' 'Wow...what a different world' 'You got that right I can give you 2 firewood if you give me two food'
Utterance: 'What abou you give me two firewoods and i give you 1 food and 1 water?'

Ex Output:
No


Ex Input:
Context: 'Got you! I really need firewood to make smores and I don't think we have enough to last the whole night!' 'I was hoping to pick up a lot of wood. It has rained around here and the wood is soggy in the forest.' 'Which item do you prefer the most?'
Utterance: 'I know how to filter water so you can have all of the water. I would like as much firewood as possible.'

Ex Output:
Yes


Ex Input:
Context: 'That doesn't work for me, May I ask why do you need two packages of food?' 'I did not bring enough food for my last day and there are not very many resources where I am camping ☹️' 'Okay, If it is the case then you need food. How about you take all 3 food and I will take all firewood'
Utterance: 'That works with me. Can you list everything you are taking so we can make sure we are on the same page? '

Ex Output:

No