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 Input:
Context: 'Oh that's cool! I will be camping with my 4 children so having a little extra would be great for me too.' 'Ok great! Do you need firewood?' 'I could use a little to cook with, But food is my main concern. Is it hot where you will be? '
Utterance: 'Ya so I could use a lot of water! Would you be willing for me to take one food two water and two firewood? '

Ex Output:
Yes


Ex Input:
Context: 'Yeah, I think I'm okay with firewood, but I'd really like more food and water.' 'That fine then. If you want you can have most of the water and I can have most of the firewood. Sounds good?' 'That seems fine. How do you want to split the food? I grew up poor so I'm always afraid of starving 😮'
Utterance: 'Oh, yea I get that. I have a family so I need some food too. But just to clarify, are the original plan was to get 3 firewood for me and 3 waters for u right? '

Ex Output:
No


Ex Input:
Context: 'Oh, I see what you did there. No problem I have plenty of firewood for you buddy. 🙂' 'Great! What extra supplies would you like to bring?' 'Since it's hot there, I get thirsty and dry real quick. 😡'
Utterance: 'Oh ok, well I plan on bringing some juice, beer and other drinks. So I could spare some extra water. And I am pretty good at fishing, so I won't need much food either'

Ex Output:

No