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: 'i understand friend. i need 2 pack of water and 3 pack of food and 2 pack of fire wood. can you please help me ' 'No way can you have everything, I will need 3 packs of firewood 2 backs of water then you can have all the food' 'i have sicked people and kids so i must need food water fire wood. please help me friend'
Utterance: 'I am sick and have a large family if we cant cooperate together we all get nothing'

Output: Yes


Input: Consider Input: Context: 'ok, fair enough.  How about I take 2 firewood as 1 should do you for a couple nights. I also have small children with me and would like to have the fire burning at all times to keep the bugs away. ' 'I really dont see giving up that much of the wood as I cannot risk running out myself. We are camping way too far out to get access to additonal lighting. I tell you what if you will let me have 2 of the fire wood I would be willing to give you two of the food items. I know that racoon probably took your food as well!!' 'Okay that is a deal. I would like 3 water as well because my campsite water is very dirty. I would like to have bottled water to take my medicine with and we forgot to pack it.'
Utterance: 'I may consider 2 waters as we are going to be hiking up the tallest mountain in North Carolina and they say temps may reach 100, I must have some have at minimum of 1 package of water.'

Output: Yes


Input: Consider Input: Context: 
Utterance: 'Hello, I would like to have three packages of food. We've decided to stay an extra night but need more food to do so.'


Output: Yes