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: 'what is the next thing you need the most/?' 'firewood to keep the body warm ' 'so water, firewood and food for you, and water food and firewood for me. what do you suggest'
Utterance: 'I'm not much of a food fan knowing that without firewood you die of hypothermia if wet, one can survive without food/ with little food for months'
Example Output: Yes

Example Input: Context: 'Hello, how are you?'
Utterance: 'Hello! I'm doing well, hope you are too 🙂 '
Example Output: No

Example Input: Context: 'Sure, that sounds like a nice deal.' 'That's awesome.  Sounds like we need to set the deal up.' 'Agree, I think after I send this message it will unlock, for me to have 2 water, 2 food and 0 firewood.  Thanks for working together'
Utterance: 'Yes, I agree.  To confirm, you will get 2 waters, 2 food, and no firewood.  I will get 1 water, 1 food, and 3 firewood.  Thank you!'
Example Output:
No