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.

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? '
Yes

Context: 'I need extra food. I have recently  been ill and my doctor has prescribed extra calories so I can regain my strength.' 'I’m sorry to hear that! If there are 3 packages of food please take 2 of them. I could stand to eat less!' 'Thank you. That deal is perfect!🙂'
Utterance: 'Sounds good to me. Let me see how to execute this trade!'
No

Context: 'I need 3 pack of fire wood and 2 pack of food and 2 pack of water' 'But If I will give you these items I don't get enough package friend.' 'i understand friend, we going to a snow fall place so we need fire wood and sicked and kids are in my team so i need food and water'
Utterance: 'Okay I will give you 2 firewood 2 food and 1 water.'

No