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.

Context: 'Understood! My top two priorities are food and water! Am hoping we can reach a compromise on the items so that we're both happy!' 'That sounds great, I'm the most flexible on food. How many of the extra packages of food do you want?' 'I am hoping to receive 2 packages of food so that way you also have 1. '
Utterance: 'That sounds great to me. I'm hoping to get 2 firewood, 1 water, and 1 food out of the deal. I'm amicable to more discussion though.'
No

Context: 'I don't mind the division but I would like a pack of firewood added because my family of 7 consume this item as well during the day & night' 'you would have to give more items up to get firewood. if you get more water, which is our highest item, i need more of other items' 'How about 1 water, 2 food and 2 firewood?'
Utterance: 'I don't really need food, to be honest. Food is the least of my worries.'
Yes

Context: 'My main objective for the camp is water, since I have a large family and the amount of water they give in the camp is very small for all my family.' 'I need water also but firewood is my second highest priority item. Maybe you could take more of the water and I could take more of the firewood.' 'I find it a good deal, however before making a deal, I like to talk to people, get to know them better. I plan to go to camp with my family: my wife, my four children and myself. Are you going with your family?'
Utterance: 'Yes, I am going with my wife and two teenage sons. We are planning on doing a lot of fishing!'
No