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! And happy camping! 🙂 To start off, I am thinking that I will need at least 3 firewood, 2 water and 1 food. Last time my axe broke and we ran out of wood! What do you think/need?'
Utterance: 'I also was really needing some firewood. It's supposed to get pretty cold at night where we are camping and I need to make sure I can keep my kids warm.'

Output: Yes


Input: Consider Input: Context: 'Hi! I was hoping to get 2 packages of firewood, 2 packages of water and 1 package of food and you can have the rest.' 'Hello. Is there a reason you prefer more water and firewood to food?'
Utterance: 'I get cold very easily and also get thirsty a lot. What are your preferences?'

Output: Yes


Input: Consider Input: Context: 'Hello, how are you? 🙂, we are excited to go camping for 2 weeks. I was wondering, if its okay with you, if I can get all 3 waters? what are your thoughts? we have a large group, lots of kids, need the extra water for cooking, putting out camp fire, and keeping all of us warm at night. '
Utterance: 'Hi, I am great 🙂 How are you? I would be happy for you to have two waters if I can have one. I would also like to have three things of food. I love cooking outside, so I would love to make large delicious meals for my group to enjoy'


Output: Yes