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: 'I agree, it will be tricky to find extra food while camping. I'm sure we can figure out something that works for both of us... the water is also very important to me because it's supposed to be hot. There is plenty of wood where I'm going, so you can have the firewood. Would you be willing to take 3 firewood, 1 food and 1 food?' 'I would like at least 2 food, how does me getting 2 food, 1 water,2 firewood sound?' 'I think I can only give away 2 food if you are willing to give up all of the water. How about you take 2 food and 2 firewood? '
Utterance: 'I think that sounds reasonable, i dont get too thirsty!'
Example Output: Yes

Example Input: Context: 'yes i guess you too. i will need more supplies like 3 foods, 2 firewood and1 water' 'I have not really camped before so I am looking for as many supplies as possible.  What about I get 3 food, 3 firewood, and 1 water. ' 'funnny you but no. so what else will i be left with if i give you those. okay let say i get 2 food, 2 firewood and 1 water.'
Utterance: 'I am really bad at cooking so will probably need an extra good just because I'll ruin one of the 3.  Plus Im bringing 2 dogs they can eat the bad food I make 😮  I dont plan on hiking much so how bought I keep all 3 foods, and you keep all 3 waters and we can split the firewood.  2 for me, 1 for you. Great deal!'
Example Output: Yes

Example Input: Context: 'I do understand. That will work for me. ' 'Could you tell me about why you want water? ' 'I want water so I can keep hydrated during this camping trip. It's important for me to drink bottled water vs. getting water out at camping as it may flare up my disease. '
Utterance: 'Oh interesting! I have a device that allows me to drink pond/stream water by cleaning it, so water isn't as important to me.'
Example Output:
Yes