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: 'Hmmm, I think I really need the firewood. I brought softwoods and they burn out quickly so I don't think I'll have enough wood to keep me going through the night. I get kinda scared without the fire. What is your priority?' '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. '
Utterance: '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'
Example Output: No

Example 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?'
Example Output: No

Example Input: Context: 'Food is what I need most. I can not survive with less than 2 food' 'i also need more food okay what if you give you 2 foods if you give me 2 firewoods?' 'that will be okay. then I take 2 water you take 1'
Utterance: 'i really need more food. are you sure that we cant do i get 2 foods and i can give you 2 firewoods and 2 water? what do you think?'
Example Output:
No