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.

Q: Context: 'ME as well! we are a group of big eaters, and are looking to take lots of food.' 'That is fair as there is no showers or sinks at my campsite so I am looking to take water :) ' 'We will likely also need to take water too. Need to be able to wash up.'
Utterance: 'That is fair, I also will need a good bit of firewood to keep warm as the campsite is in a colder area.'

A: Yes
****
Q: Context: 'Actually, I think I may need more food than water. How about I take the food and we can split the water. You may have 2 waters, if you need them.' 'Sure then. You can take all the food. It's not really a priority to me. ' 'Great. So if I have three food and one water, you can have three firewood and two water. Would that work for your trip?'
Utterance: 'That's perfect for my camping trip. '

A: No
****
Q: Context: 'That's alright. Do you have anything you need in particular? ' 'I need food and water' 'I need water too. One of mine has a leak.☹️'
Utterance: 'the temperature is 115 degrees F where I go,  If I don't have extra water I will not make it'

A:
Yes
****