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.

Q: Context: 'hello'
Utterance: 'Hi'

A: No
****
Q: Context: 'Perfect!  I'm a northerner, so the firewood is all yours!  I'll need lot's of water to keep hydrated after the hike, and I'll probably be pretty hungry too.' 'My spouse calls me a water buffalo so I'm pretty water dependent if you couldn't tell.  ' 'That's good.  Best way to stay healthy is with water.  How about you take 1 water and all the firewood?'
Utterance: 'I need at least one ration of food.  Would it be ok with me:  3 firewood and 1 each of food and water.  If you are ok with that, I am too.'

A: No
****
Q: Context: 'I think we can defintiely work together and come up with a great solution and both get what we need' 'do you have a particular item preference?' 'I do.  I have been looking everything over and feel this won't be to hard to come to an agreement'
Utterance: 'Well my camp places a premium on water.  How would you feel about for me: 2 water, 1 food, 1 firewood?'

A:
Yes
****