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: 'I am actually very much in need of water. I fell while I was hiking during this trip. I have a really bad wound I need to clean on my leg. ' 'yikes that stinks. i got some extra people with me and we dont hve enough either. could i take 2 since we will be drinking it and maybe you can have 1 to get that wound cleaned up' 'There is a lot of blood on my wound and if I don't get it cleaned I am afraid I would have to have it amputated. It's likely I'll be stationary a long time. Maybe I can give you 2 water in exchange for 2 foods since I'll be stuck up here for a long time? '
Utterance: 'oh no!!!!! sounds like you shouldnt be camping at all. thats insane that happened. youre definitely in my thoughts. uhm i guess i have no choice since your situation is dire. so to be clear youre saying i can have two water and you can have two wood? if so thats ok with me'

Output: No


Input: Consider Input: Context: 'I mean water and food' 'Is food something you need the most of or is it water?' 'I need 2 packages of both food and water on each'
Utterance: 'Food is a hard one to give 2 packes of since I dont have very much and need to feed my family.  We do have plenty of water though.  Would you be willing to take 3 packages of water and only get 1 package of food?'

Output: Yes


Input: Consider Input: Context: 
Utterance: 'Hello, how are you today?'


Output: No