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.

Example Input: Context: 'Wow. I’m alone here. I could use an extra food and water. ' 'How many would you like? I just want to make sure we have enough good and water because there are so many of us' 'I understand. I would like one food and one water. How much wood do you want for that?'
Utterance: 'I think we could get by with two pieces of wood and I would be glad to give you the other one'
Example Output: No

Example Input: Context: 'I will take all the food and water then' 'That will be very unfair of you. How am i going to survive without water or food?' 'You have food and water, this is just extra supplies'
Utterance: 'I know but with my condition i may not make it, especially without more water.😮'
Example Output: Yes

Example Input: Context: 'Hi we would like you to consider giving us all of the rations for the trip.' 'hello, that could be a good idea, but I think I need more rations'
Utterance: 'How important are they to you? We would like to get a good mix, preferably more food.'
Example Output:
No