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.

Q: Context: 
Utterance: 'What is it that you really need on this camping trip?'

A: No
****
Q: Context: 'Hi, What is decision about packages?'
Utterance: 'I was thinking I will take 2 food, 1 water, 2 firewood'

A: No
****
Q: Context: 'We wantto do a lot of hiking on our trip and therefore I need extra water to make sure we stay hydrated. ' 'hi! thats awesome i am going camping too, but not a lot of hiking. I am bringing 2 teenage boys so food will be very important for us' 'I definitely understand that, kids can eat a lot. I  can spare 2 extra food for all the water. '
Utterance: 'that will work for me - how about i take 2 food, and all the firewood - i am hoping to teach my boys campfire songs - they need other hobbies that dont include electronics :). You can have 1 food and all the water? '

A:
No
****