Given the task definition and input, reply with output. 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 vouch-fair strategy, otherwise output No. vouch-fair is a selfish negotiation strategy. It is used to call out fairness for personal benefit, either when acknowledging a fair deal or when the opponent offers a deal that benefits them. This can be through an explicit call out or can be implied.

Context: 'Hi!  I am excited to go camping!  I would love to get 3 extra food and 3 water since we will be canoe camping and won't be able to purchase more.  ' 'I am going camping too.  May I ask where you are going canoe camping?' 'We are going to camp in Oregon.  We are looking forward to it.  The views and scenery should be gorgeous.  How about you?'
Utterance: 'I am going to the Allegheny mountains in Pennsylvania.  I'm going to be hiking a lot so I will need some extra food.  Let's balance out the food and water somehow....'

Yes