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: 'hi 🙂' 'I was thinking that you could give me 3 food packages and i will give you 3 water? What do you think?'
Utterance: 'If I do that I would also like all three firewood'

Ex Output:
No


Ex Input:
Context: 'hello' 'Hi'
Utterance: 'Are you really exciting about camping trip?'

Ex Output:
No


Ex Input:
Context: 'I am really bad at cooking so will probably need an extra good just because I'll ruin one of the 3.  Plus Im bringing 2 dogs they can eat the bad food I make 😮  I dont plan on hiking much so how bought I keep all 3 foods, and you keep all 3 waters and we can split the firewood.  2 for me, 1 for you. Great deal!' 'i too i am bad at cooking and i will spend a longer time in the woods so i will need atleast 2 foods, 2 firewood and 1 water' 'But I have more mouths to feed here so I will give you one of the foods, but then need 2 firewood and then take back 1 of the waters.  '
Utterance: 'your dogs could probably hunt for something for you guys. and i would be in the would for a very long time '

Ex Output:

Yes