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: 
Utterance: 'I have a medical condition that causes my veins to close up when I get too cold. I will thus need the 3 firewood.'

A: Yes
****
Q: Context: 'Your needs are like mine. I have a condition that require  me to shower quite often. It is a shame but if I do not shower for 3 hours I will stink.  ' 'Well fortunately if you are camping that won't be too bad. You'll blend in with the wilderness.' 'My friends will run away. I will not be comfortable either. So how do we split what we have?'
Utterance: 'If they're true friends, they won't. I'll take 2 firewood, 2 water, 3 food.'

A: No
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Q: Context: 'Lol, wish i could. Then you take all 3 of the firewood, I'll take 2 of the Water and 1 of the food, sound good?' 'Just to be clear, I get 3 firewoods, 1 water and 1 food. You get 0 firewood, 2 waters and 2 food packs?' 'Everything sounds good except you and your family take 2 of the food, i need to lose weight anyway.'
Utterance: 'Perfect! Thank you!'

A:
No
****