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.
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Question: Context: 'for me. 2 pack of water 2 pack of fire wood and 2 pack of food. ' 'I gotta have one extra of the food or wood at least if you want two water' 'i already reduce my package in water. now what can i do? in my group my wife is cansive and one kid and a old man he is sicked person. so i need this package friend. please friend'
Utterance: 'well. I may be willing to give you two water but i need to have two firewood to boil up some of this lake water to try to drink'

Answer: Yes


Question: 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?'
Utterance: '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.'

Answer: Yes


Question: Context: 
Utterance: 'We wantto do a lot of hiking on our trip and therefore I need extra water to make sure we stay hydrated. '

Answer:
Yes