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: 'That's good to hear, you always have to be careful with wild water though, it has all kind of germs. Sounds like you'll have plenty of dry firewood though. ' 'Yes, I would be willing to let you have all the firewood for 2 of the cases of water.  How much food were you needing?' 'I like your water and firewood arrangement. Can I have 2 of the food since you're getting 2 of the water? '
Utterance: 'Let me think on that. I know there won't be much for berries or small animals to hunt for.  Is where you are going have much available for you to hunt and scavenge for?'

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
****
Q: Context: 'hi turker i will be needing firewood as well because i need to keep warm while i camp.i suggest i take 2 firewood, 1 water and 1 food while you can have 1 firewood, 2 water and two foods' 'I can take 2 firewoods, you can take all the food and most of the water. So, I am offering you all the food and water.🙂' 'I suggest you look at my offer because you can get hungry and also need water.i really need the firewood as well'
Utterance: 'We already have more food than we need due to the extra people who brought more food than we'll eat. Plus, we're near a fresh water supply. And there's so much snow, it's insane🙂I need all the firewood. '

A:
Yes
****
