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: 'What is on your most needed item?' 'I need Food, what is yours?' 'I kinda need water because I get dry mouth very often.  so without water it will make it hard to achieve getting other items in the wilderness.'
Utterance: 'Ok thats nice, I need food more because I didn't bring much and that a problem,  What do you think if I give you 2 wood and you give me 2 food?'
Yes

Context: 
Utterance: 'Hello. '
No

Context: 
Utterance: 'Hi, I will need alot of water as I need it to stay alive.'

Yes