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.

Input: Consider Input: Context: 'Great, how are you?' 'Pretty good, planning my camping trip, checking on supplies.' 'Here too, looks like the weather has changed for us. We won't have enough water to last as we forgot it. Food, we have some snacks, but not enough to get by for our trip. I'm not overly concerned about firewood since it's so hot. But I'm really concerned about water.'
Utterance: 'Yeah, I'm going to the desert so I'm hoping to have enough water. I'm good on food and I hunt for a lot of it anyways.'

Output: Yes


Input: Consider Input: Context: 'Hi there! How are you?'
Utterance: 'Great! I'm very excited to go camping, how about you?'

Output: No


Input: Consider Input: Context: 'I'm sorry to hear that you are not doing well.  I've also have some issues.  On the way up to the camp site, all of my clean water spilled in the car.  I was really hoping to be able to get all of the available water.  Why aren't you well?  I hope it's not serious.  ☹️' 'Oh, that's terrible.  I'm sorry that happened.  I need the water for my child.  They seem dehydrated and disoriented.  My husband has also caught a cold and has been having chills.  I thought the extra firewood would help him feel better.' 'Oh my gosh.  You are not having an easy trip.  If your children are dehydrated and disoriented, perhaps you should get them to emergency care immediately.  I would like to provide you will all of the water in the meantime, but that would leave me with none at all.  I wouldn't have your husband out of the tent with chills.  Perhaps you should keep him bundled in your cabin.  I forgot my portable propane grill - so I would need some firewood.  How about I take 2 waters, 1 firewood and all of the food?'
Utterance: 'Oh dear, you spilled your water and forgot your grill?  You mentioned that you had a car.  Perhaps you could take a quick drive to grab some extra water.  For now, I definitely agree that you need 1 extra water and 1 firewood.  I will need 2 of the extra food portions though.  How does that sound? '


Output: No