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.

Input: Consider Input: Context: 'Hi. I'm most interested in water. What's your highest priority?' 'I really need water too. I have a young baby and will do a lot of washing.'
Utterance: 'Okay. I'm not especially worried about food. What's your lowest priority?'

Output: Yes


Input: Consider Input: Context: 'Hello' 'Hi there.. how are you doing today?  I hope well!  🙂  So, it looks like we need to divy up these supplies, huh?  Do you have any thoughts on the issue?'
Utterance: 'I'm doing fine thank you, how about you? Well for my trip I'm most interesting in socializing so a great campfire a night would be great, I'd prefer not to boil water either so want extra of that too. Food less so as I will go fishing and know wild vegetables, fruits and mushrooms I can pick. How about you?'

Output: Yes


Input: Consider Input: Context: 'Oh ok, I don't need water at all. I usually just get it from running streams' 'can i get 3 water, 2 food and you will get all the firewood?' 'That sounds fine to me :D'
Utterance: 'perfect'


Output: No


