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.

Ex Input:
Context: 'Tell me why you need so much firewood?' 'I have other people coming with me and we don't have insulated sleeping bags.  The temperature also drops drastically at night.' 'Well i need at least 1 firewood so we have to make that work'
Utterance: 'How about this I get 2 packages of firewood and 2 packages of water.  You can have all my packages of food. This will be a hunting camp trip for me.'

Ex Output:
Yes


Ex Input:
Context: 'I agree. I have diabetes, so water and food are super important to me. My diabetes makes me super thirsty and I have to make sure I keep my blood sugar under control with certain foods ☹️' 'I can definitely relate to that, I have family members with type 2 so I know how bad that can get' 'Yes definitely! It is a pain for sure, but I love camping so I still want to go! I just have to make sure I have all the supplies I need. '
Utterance: 'I can do without extra water as long as I have food and firewood to purify water I find.  It might be better for you to have a reliable supply though.'

Ex Output:
Yes


Ex Input:
Context: 'Hi how are you?' 'I am good. How are You.   I was just thinking about how I need extra water due to a medical condition.  How about I take all 3 waters?' 'I am okay. How about I give you one and half then I get some firewood from you?'
Utterance: 'No I need at least 2 waters.  But I am willing to give you all 3 foods, if I get all the firewood.  Does that work for you?'

Ex Output:

No