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: 'hi how are you' 'I am well, thank you.  Yourself?'
Utterance: 'good here, I will need 3 water as I need it to survive'

Ex Output:
Yes


Ex Input:
Context: 
Utterance: 'Hello, how is your camping trip going?'

Ex Output:
No


Ex 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?'

Ex Output:

No