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.

[EX Q]: Context: 
Utterance: 'Hi. I'd like to have all the food packages for my children and two of firewood. Will you accept it🙂🙂🙂'
[EX A]: No

[EX Q]: Context: 'Hello I'm really hungry and thirsty and want some food and water if that's ok with you. '
Utterance: 'Well some is okay but not all. The thing is that we left in a hurry and forgot to pick up the bag with the extra food items. I am sorry but we have kids with us so we will need the food. Am sure you understand ☹️'
[EX A]: Yes

[EX Q]: Context: 'Hello there.' 'hi' 'So I plan to go hiking a lot this trip and I would appreciate a majority of the water and firewood if possible.'
Utterance: 'I want to go on hiking too. Since I don't go alone I need food and water.'
[EX A]:
Yes