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.

Example Input: Context: 'just a bunch of children under 5 who wont be able to gather firewood. so i desperately need at least 2' 'I see, well it sounds like you're going to need some additional food with those children. How about I provide you with some additional food and you can help me with my need for heat with firewood?' 'okay how i take all 3 food and 1 firewood?'
Utterance: 'The firewood sounds like a solid deal; I would need a little food though to assist me. The good news is since there's a stream near me, I won't need any additional water, so I am happy to provide you with all of the additional water.'
Example Output: Yes

Example Input: Context: ' The item I need the most is water because I need to hydrate to stay strong and achieve my goals. And you?' 'I would say water as well because I am very active and build up thirst as a result.  However, I would be willing to compromise on things to allow you to have more water.' 'The item that I need the least is firewood because I will dedicate myself to look it up at the camp. And you?'
Utterance: 'Yes I think we have the same preferences.  I do not get cold easily and will bring a heavy sleeping bag.  '
Example Output: Yes

Example Input: Context: 'Okay, well firewood is also my top priority since it will be so cold tonight.  But I would be willing to take only 1 firewood (and give you 2) as long as I got 2 foods and 2 waters ' 'Thank you for the offer on firewood.  I think that sounds fair.  However, I really would like at least 2 waters as well. ' 'Hmm unfortunately I can't budge since I would be accepting less of my top priority item.  It sounds fair to me though; I'd get 5 items in total but less of my top priority and you would get 4 items in total but more of your top priority'
Utterance: 'Well, how about if I take 2 firewoods and all of the food and you can have all of the waters? I have a device that I can make clean water, but will need more calories to do so! 🙂'
Example Output:
Yes