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: 'Hello. I am so looking forward to this camp out. My daughter just called and said she is going to come and bring some of her firiends. 🙂' 'Hello! That sounds pretty reasonable to me. I was going out with a bunch of my buddies. We like to hike a lot in the sun, so we need lots of water. How does it sound if i take all the food and water, but you get all the firewood?'
Utterance: 'I love hiking. My daughter is bringing extra water. So we could trade the water for the firewood. We do need just a little food as I didn't plan on having an extra person.'

Output: Yes


Input: Consider Input: Context: 'Oh. Let do some deal. If you give me all water bottles I will give you 2 firewood. Can you accept this' 'i could give you 2 water bottles and 3 food if you can do 3 firewood' 'OK. Are you need Extra food packages?'
Utterance: 'no, I am okay with food which is why I offered them all to you since all my firewood is ruined. I figured if i gave you 2 water and 3 food you might be able to spare the 3 firewood'

Output: Yes


Input: Consider Input: Context: 
Utterance: 'Hello! I'm packing for my camping adventure.'


Output: No