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: 'mind your words mr. i am in some trouble that's why i ask you this help. its not good man' 'Ok I am going to say this once before we both get nothing, I will get 3 Firewood, 2 Water and 0 Food. You will get 3 Food, 1 Water' 'i am also need firewood friend because we are going to snow fall place so i need at least 1 pack of fire wood '
Utterance: 'wait friend  i need fire wood must. how we all are live in the place please understand my situation '

Ex Output:
Yes


Ex Input:
Context: 'Would I be able to take 2 firewood and 3 waters and then you take the res?' 'Yes' 'It sounds like we are going to have a really good weekend!  I'm pumped up!  We'll have enough firewood to keep warm, lots of water, and food as well!'
Utterance: 'Excellent'

Ex Output:
No


Ex Input:
Context: 'Hello, what do you need the most for your camping trip?'
Utterance: 'ideally some firewood, it got soaked due to me being caught in the rain. what do you need the most?'

Ex Output:

Yes