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 there?' 'Hi! How are you?'
Utterance: 'I am fine. How is your camping trip going?'

Ex Output:
No


Ex Input:
Context: 
Utterance: 'Can you spare some water? I need to take medication and I have run out.'

Ex Output:
Yes


Ex Input:
Context: 'I like the sound of getting the firewood, but I can't just accept no food or water.' 'I'll give you one of the extra food so you have a little extra to cook for everyone but I'm really gonna need all that extra water, it's going to be really hot this weekend and the folks at the capsite get to sit in the shade all day' 'Now we are making progress. But come on, I will need at least one water to make sure I'm hydrated. I wouldn't want to get heatstroke out in the woods.'
Utterance: 'The basic supplies include water, the additional supplies are just extra. Plus I think there's a well nearby!'

Ex Output:

No