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.

[Q]: 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...'
[A]: Yes


[Q]: Context: 'Yeah, What did think about water? ' 'I think water is great! I don't need very much for this trip, but water is delicious.' 'Okay, but water is important to me because I have health issues. So I drink more water for save my health.'
Utterance: 'Okay! You can have all the water. I want all the food.'
[A]: No


[Q]: Context: 'Are you bringing guest?' 'I am a campaign partner' 'Oh. What does that mean?'
Utterance: 'No I am the only person who come with you'
[A]:
No