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: 'Hello there.' 'hiii'
Utterance: 'So in order to fully enjoy my on this trip while surviving, I will require mass quantities of food.'

Output: Yes


Input: Consider Input: Context: 'I will offer 3 water to you! You will maybe need more food with that much exercise? How about 2 food? I really need that extra firewood. Remember that the Catskills probably has some extra wood around.' 'That works for me, you can have the firewood then!' 'Alright that sounds great. '
Utterance: 'Great! so, for you, 2 wood, 1 food, me 3 water 2 food'

Output: No


Input: Consider Input: Context: 'Looking forward to the trip.  They gave up the bare essentials but I could really use some extra supplies.🙂' 'I could too, I am a little short on a few things!' 'My biggest concern is water.  I could really use more.  That and some extra food.'
Utterance: 'My biggest concern is food and then water. '


Output: No