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 Q]: 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 A]: Yes

[EX Q]: Context: 'Hi!  I am excited to go camping!  I would love to get 3 extra food and 3 water since we will be canoe camping and won't be able to purchase more.  ' 'I am going camping too.  May I ask where you are going canoe camping?' 'We are going to camp in Oregon.  We are looking forward to it.  The views and scenery should be gorgeous.  How about you?'
Utterance: 'I am going to the Allegheny mountains in Pennsylvania.  I'm going to be hiking a lot so I will need some extra food.  Let's balance out the food and water somehow....'
[EX A]: Yes

[EX Q]: Context: 'We both sound pretty reasonable! So you think you need 2 firewood?' 'yes please,  i  dont require much food or water 🙂' '🙂  You're being very accommodating! So right now I have 2 food, 2 water and 1 firewood. And you have 1 food, 1 water and 2 firewood, right?'
Utterance: 'that sounds good to me, if you want to give me another food i would take it but ok if not '
[EX A]:
No