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' 'Hi there!' 'Im really low in food, is it ok if I get 3 Food, 1 water & 1 firewood? What do you think?'
Utterance: 'With the cool weather in degrees lower than expected, my family of 7 are consuming firewood faster than expected. Thus, I would like all the firewood in exchange for the food'

Output: Yes

Input: Consider Input: Context: 'Hi. I'm most interested in water. What's your highest priority?' 'I really need water too. I have a young baby and will do a lot of washing.'
Utterance: 'Okay. I'm not especially worried about food. What's your lowest priority?'

Output: No

Input: Consider Input: Context: 'yes I could use some extra food since i am hiking with my kids and they all have a friend that comes along...lol' 'I know how that goes...We are planning on hiking too and we could also use some extra food.' 'well I am sure between you and me we will find a way....'
Utterance: 'I really need some food, but I could also use extra firewood. It is supposed to be pretty cold at night and we would love to cook up some smores.'
Output: Yes