TASK DEFINITION: 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.
PROBLEM: Context: 'Hello. I really just need firewood for my wife and daughter and some extra water for myself.'
Utterance: 'Hello, i also need firewood, i have a medical condition where it is very hard to maintain my body temperature. '

SOLUTION: Yes

PROBLEM: Context: 'Great, how are you?' 'Pretty good, planning my camping trip, checking on supplies.' 'Here too, looks like the weather has changed for us. We won't have enough water to last as we forgot it. Food, we have some snacks, but not enough to get by for our trip. I'm not overly concerned about firewood since it's so hot. But I'm really concerned about water.'
Utterance: 'Yeah, I'm going to the desert so I'm hoping to have enough water. I'm good on food and I hunt for a lot of it anyways.'

SOLUTION: Yes

PROBLEM: 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. '

SOLUTION:
Yes