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 am just concerned that only 1 firewood might make it so I'm too cold to function. ' 'If you boil the water above the fire, it will provide additional heat over time.  You would also be able to make tea, which would warm you up from the inside as well, better than any fire would.  That would probably be most beneficial to you.  I really do need the 2 firewood if there's any chance of making a bonfire for my party.' 'I am allergic to tea and coffee. I wonder if the smaller fire would be more quaint for everyone to sit around. '
Utterance: 'It really wouldn't do the job that well at all.  You could always prepare hot cocoa or use your share of the food to make a warm stew.  I really do need at least the two firewood and a couple of food.  You can have all the water to make a hearty and hot stew to get your through the night, though.'

Ex Output:
No


Ex Input:
Context: 'You drive a hard bargain. I could really use that firewood. It's going to get cold tonight and these sleeping bags are not worth the price I paid ;)' 'Haha, I know but I am in the same situation! ☹️ and since I am getting less food I feel like it is fair I get on more firewood since I truly need that 🙂' 'Some extra water for coffee might keep us warm, would you consider taking 1 food, 2 wood, 1 water?'
Utterance: 'Sure I can do that 🙂'

Ex Output:
No


Ex Input:
Context: 'How about two water, 1 firewood and 1 food, since we both value water the most?' 'Is that what you want or what you are offering?' 'That's what I'm offering to you, but I think it's a fair deal, so I'd accept it myself, too.'
Utterance: 'Fair enough.'

Ex Output:

No


