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 thanks. I'm a bodybuilder so I need a lot of food and water if that's ok with you?' 'Oh that's cool! I will be camping with my 4 children so having a little extra would be great for me too.' 'Ok great! Do you need firewood?'
Utterance: 'I could use a little to cook with, But food is my main concern. Is it hot where you will be? '

Ex Output:
Yes


Ex Input:
Context: 
Utterance: 'Hello, I am very cold and need food and wood to remain warm. How about I get 3 firewood, 3 food and 1 water?'

Ex Output:
Yes


Ex Input:
Context: 'Hi, how are you? ' 'Am fine what about you?'
Utterance: 'Good thanks! So I'm hoping I can get all of the Food, but am willing to negotiate on the other items. '

Ex Output:

No