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: 
Utterance: 'Hi. I'd like to have all the food packages for my children and two of firewood. Will you accept it🙂🙂🙂'

Ex Output:
No


Ex Input:
Context: 'Hi there, good to connect with you. How are you today?'
Utterance: 'I am good, thank you.  What are your preferences? I really need the extra food packages.  We are doing a lot of hiking and mountain biking and there are no grocery stores for at least 50 miles.🙂'

Ex Output:
Yes


Ex Input:
Context: 
Utterance: 'Oh my, it's a bit hotter out here then I expected. I hope that I brought enough water for this camping trip.'

Ex Output:

Yes