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: 'I will offer 3 water to you! You will maybe need more food with that much exercise? How about 2 food? I really need that extra firewood. Remember that the Catskills probably has some extra wood around.' 'That works for me, you can have the firewood then!' 'Alright that sounds great. '
Utterance: 'Great! so, for you, 2 wood, 1 food, me 3 water 2 food'

Ex Output:
No


Ex Input:
Context: 'hello, how do you suggest we share the items?' 'Hi there! Well first I was wondering what item you think you'd like or need the most?' 'I like firewood and water most'
Utterance: 'Hmm okay, I am willing to give you three waters! I was hoping to get 3 firewood though, as it's going to be really cold where I am going.'

Ex Output:
Yes


Ex Input:
Context: 'Ya sure. ' 'Sorry for the type--I meant 'food' not 'good'.🙂' 'Yes i can understand.'
Utterance: 'We will be in an area where there is not much firewood to collect. You have to bring it in.  We hope to cook with it and keep warm in the evenings.  I am hoping to take at least 2 firewood packages.'

Ex Output:

Yes