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.

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.'
Yes

Context: 'No it's not.  Since my fever is very high and my chills are very bad I'd appreciate you letting me have 2 firewoods and in exchange you could have all the extra food.' 'That is an interesting proposition.  What about the water?' 'I think if you let me have 2 waters I might survive this scourge!'
Utterance: 'I think that your reasons are very compelling.  I would also like to survive.'
Yes

Context: 'Thank you for asking, I would really like some extra fire wood as I usually get cold and scared at night so I can keep a fire going.' 'I'd be willing to give you all my firewood if you could give me all the water.' 'I do need at least one extra water bottle in case the fire goes out of control, but I am willing to forgo any food as I can forage for food.'
Utterance: 'Alright. Thanks. I only ask for so much of the water because I am overweight and I know while camping I'll work up a huge sweat.'

Yes