TASK DEFINITION: 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.
PROBLEM: Context: 'Hi, how are you? ' 'Am fine what about you?'
Utterance: 'Good thanks! So I'm hoping I can get all of the Food, but am willing to negotiate on the other items. '

SOLUTION: No

PROBLEM: Context: 'my priority is firewood. What's yours?' 'me and my gals thing that firewood is important also but we actually want water' 'We can figure something out. Would you rather have 3 water and 0 firewood or 2 water and 1 firewood?'
Utterance: 'can i have 2 foods too'

SOLUTION: No

PROBLEM: Context: 'Hi, I would like to get 3 firewood, 2 waters and 1 food pack.' 'Hello, I am in need of more water than just one,could you possibly allow me to have two and the other items are fine'
Utterance: 'I have a bunch of kids and need extra water. I can give you 2 food packs instead.'

SOLUTION:
No