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: '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?'
Example Output: Yes

Example Input: Context: 'Good afternoon, how are doing today? Let's get this thing going. What items are you most interested?' 'Hello , i am well. i dont need much so i would say an equal amount.' 'I have a medical condition that require me to drink a ton of water. I also can only eat certain foods and I have 3 kids. The more food and water the better for us.'
Utterance: 'sorry to hear that. i too have kids but my health is ok so i can do with 1 water.'
Example Output: Yes

Example Input: Context: 'Why do you have a risk of dehyrdation? Because I believe all people do but I do understand some people are at a greater risk then others. Tell me why you are at risk?' 'I have a medical condition that requires medication, and this medication requires me to drink an extra amount of water or else I will dehydrate. ' 'That is a problem. Does the medication require the use of fire or firewood as well?'
Utterance: 'No, of course not. You can have the extra of those if you'd like. It is really the water that is the most important to me. '
Example Output:
Yes