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: 
Utterance: 'Hi there. How are you?'
Example Output: No

Example 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?'
Example Output: Yes

Example Input: Context: 'That would be fun! I feel like I always do better when I have someone to run against.  Competition does me good. That sounds fantastic on the fire wood and water split.  What is your food situation looking like??' 'How about this? 2 for you and 1 for me. Going low carb and mostly brought my own. What do you think? ' 'That sounds great! I don't think my chances for catching any fish are pretty slim!'
Utterance: 'You fish? Perhaps I could learn. Never got into it. '
Example Output:
No