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: 'Good morning! Are you excited to go camping this weekend?' 'Yes, how about you! We are headed to Joshua Tree NP to do some rock climbing and hiking. '
Utterance: 'Ooh rock climbing! I'm definitely scared of heights, so that's out for me. I'm heading to the Puget Sound to camp near the ocean.'

Ex Output:
No


Ex Input:
Context: 'Hello!  I'm looking forward to a big camping trip I've been planning for a long time this weekend.  How about you? Do you have any plans?'
Utterance: 'Me too!!! I love camping! All that activity gets me wanting to indulge on snacks and then water to quench my thirst!'

Ex Output:
Yes


Ex Input:
Context: 'You don't have to eat the poison mushrooms. You can catch some fish from the river or hunt for small animals.  You have all of the firewood so cooking the food should not be a problem.' 'I won't willingly eat the poisonous mushrooms, but it could be very hard to tell the difference from safe and toxic ones.  I understand you will be staying in your area for a few extra days, but can you catch fish or hunt for small animals in your area too?' 'I do not have any extra firewood to do so.☹️  So if I can keep 1 package of firewood so I hunt and cook the fish.  I will give you 1 package of the food.'
Utterance: 'I would be willing to give up 1 package of the firewood to you for 1 package of the food.  '

Ex Output:

No