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 self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

Example Input: Context: 'I would give you all of the additional food if you gave me all of the additional water. ' 'That sounds like a deal' 'Shall we divide the firewood two to one? '
Utterance: 'sure as long as I am getting two wood.   It gets very cold at night where I go camping'
Example Output: Yes

Example Input: Context: 'Good morning! Are you excited to go camping this weekend?'
Utterance: 'Yes, how about you! We are headed to Joshua Tree NP to do some rock climbing and hiking. '
Example Output: No

Example Input: Context: 'food is necessary for all living beings. '
Utterance: 'I am traveling with a big group so we need more water.'
Example Output:
Yes