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: 'Well, I think that for us staying warm is more important than having extra food. What if I took extra fire wood and you took extra food?' 'That could work, were not really looking to have a big fire' 'Where do you stand on water? We're low , and may need extra in case the fires go out of control'
Utterance: 'I do need some myself as well'

Output: Yes


Input: Consider Input: Context: 'yes im ready rocky mountains ' 'awesome! I love the rockies. So let's try and divy up our extra supplies then. Personally, I feel that I'd need the most extra food, as I'm a rather large guy and plan to go hiking a lot during this time. Firewood would be nice, so I could have a big bonfire. What are your prefernces? ' 'i need food the most since there will be my kids and I. I can give up my firewood for food'
Utterance: 'Okay, so how about I get 1 food, and 3 firewood and 1 water, and you get 2 food, 0 firewood, and 2 water'

Output: No


Input: Consider Input: Context: 'I think I can help with that, but in exchange, can I have 3 firewood bundles? I hate to take from the forest and risk damaging the natural wildlife habitat.' 'yes of course!' 'great!'
Utterance: 'So we have agreed i get 2 foods and 3 waters and you get 1 food and 3 firewood? does that sound good?'


Output: No