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: 'Hello. I really just need firewood for my wife and daughter and some extra water for myself.'
Utterance: 'Hello, i also need firewood, i have a medical condition where it is very hard to maintain my body temperature. '

Ex Output:
Yes


Ex Input:
Context: 'They sort of need more water for their meds' 'I'm sorry to hear that! But can you spare 1 for me since you probably don't need all the water.' 'Sure that sounds fair. Thank you. Besides water what do you need for your trip?'
Utterance: 'great. Then can you give 2 food instead? We eat a lot and need more to go through the night...'

Ex Output:
Yes


Ex Input:
Context: 
Utterance: 'Hello, how are you doing today?'

Ex Output:

No