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: 'What kind of items do you need?  I especially need water because I would like to do extra hiking and would need to hydrate.  ' 'I need all three, but need food the most' 'I would give you all of the additional food if you gave me all of the additional water. '
Utterance: 'That sounds like a deal'
Example Output: No

Example Input: Context: 'Food is of the highest preference for me! I am a diabetic and always need to be able to eat if I'm experiencing a low! How about you?' 'Food is also my highest preference, followed by firewood, with water being the lowest. I don't have a medical condition that needs food so I can give you 2 units if I can have 1?' 'That would be great if you could! '
Utterance: 'I can do that! What's your next highest priority? I would prefer 2 firewood as I need to be warm at all times and plan to camp in the cooler weather'
Example Output: Yes

Example Input: Context: 'Hello!  I'm going to be heading out on a big camping trip and will need to take some extra supplies.  Are you going camping as well?' 'I am also going camping! What do you think you're going to need the most of? What are your preferences?' 'It's going to be hot during the day where I'm going so I'll need some extra hydration.  So water is my main priority.'
Utterance: 'Got it! I am going to need the most of food. There aren't any animals or berries that I feel safe eating where I'm going.'
Example Output:
Yes