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 no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.

Input: Consider Input: Context: 'I would be most happy to make a concession on the food for an extra ration of water. Are you going to require any firewood if you don't need any I think i'll take the 3 rations so I can have a nice bonfire.' 'I do believe I would need at least one firewood, but am willing to give up 2, so you can have a nice big bonfire 🙂' 'You have been most thoughtful during this negotiation I just want to say thank you for being so helpful.🙂'
Utterance: 'absolutly! You as well. So just to confirm. Me 2 food 1 water, 1 firewood. You, 1 food, 2 water, and 2 firewood? Sound good?'

Output: No


Input: Consider Input: Context: 'Why would you want to give up all that water? You're going to need extra water for your family to drink. All the sodium in the fish is going to make you all thirsty!' 'Your right,😮  I didn't think about that. But will probably only need 1 extra package of water so, in exchange I will offer you 1 package of firewood.' 'I know this isn't your problem, but I'm a student and I had to come up here to take photos of the night sky for my astronomy class. I slept really late today as I have to sit up all night to get the different stars, and possibly even the space station if it's clear enough out. I have to sit by a fire to stay warm so I can get these pictures to hand in to my professor tomorrow.'
Utterance: 'You know that is very impressive.  I admire your determination and effort you put into your class.  You must be very passionate about astronomy.'

Output: No


Input: Consider Input: Context: 'yeah you are right, but water is essential for all !☹️, you must consider that too' 'I agree water is needed. I can do 2 water 2 firewood and 0 food' 'you consider me giving one of your water package and collect food package, if you are lucky you can get liquid foods too🙂'
Utterance: 'I don't like food. my stomach is always full. I only drink water since im thirsty most of the time.'


Output: Yes