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.

Input: Consider Input: Context: 'hello' 'Hey! How are you? My bestie and I were going to be going on a camping trip, but my other friends heard about it and wanted to come along so we're going to need more supplies than I initially though which has got me a little worried. ☹️' 'Yes!!! I need some water pretty bad. I am good on food because I fish and I have been able to catch some catfish from the lake. How about I take 2 water 2 firewood and 1 food'
Utterance: 'I need a lot of food, because of how many people are coming now (like 3 times as many). Also, there's only one stream in the area and it's really far from our campsite, so it would be super inconvenient to have to hike there everyday to refill our canteens. We are in a forest though, so we should be good for wood. Since you can easily fish, what if I take 3 food and 2 water? You can keep all the firewood. 🙂'

Output: Yes

Input: Consider Input: Context: 'Hey there!' 'Hi! How are you?! You excited for your camping trip??! I sure am ready to go on mine!'
Utterance: 'I am very excited, I'm actually going camping in a week. I drink a lot of water so it's important that I bring a lot. What about you?'

Output: Yes

Input: Consider Input: Context: 'Hello! how are you doing? are you excited to go camping' 'Yep! Been closed up too long with this Covid-19 stuff.😡Wish it would like the Prez sez "go away"' 'Yeah, it's very sad these days'
Utterance: 'Then I got here and noticed I didn't pack my cooking sterno and critters go into some of my food☹️Kinda puts a damper on the trip.'
Output: Yes