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 other-need strategy, otherwise output No. other-need is a selfish negotiation strategy. It is used when the participants discuss a need for someone else rather than themselves. For instance, describing the need for firewood to keep the kids warm.

Ex Input:
Context: 'I was thinking we can say which ones we want more? Or depending on where we are camping and our camping abilities, we might need some materials more over others' 'That sounds good to me!  I heard where we are going it is going to be really cold the next couple of nights so we definitely need extra firewood.  We also have a pretty big group so extra food and water would come in handy too.  So how about I take 2 of the extra firewood, 1 extra water and 2 extra food?' 'Oh we have a substantial group as well, one of which is newly pregnant. Since we could find firewood ourselves, how about you take 2 firewood, 1 water, 1 food? '
Utterance: 'We could really use that extra water and food, maybe you would be interested a little bit more firewood?  How about I take 1 firewood, 2 water, and 2 food?  I've got a big group of guys to feed.'

Ex Output:
Yes


Ex Input:
Context: 'Hello! Thats terrible that the airline lost your bags! I'm planning on have a large group of friends with me so we need lots of snacks with us. We are scared of fires so we don't want to make campfires.' 'Well maybe we can work something out between us.  Our food and water was in the bags they loss so I really need those.  Do you think you could make do with 1 food and some water?' 'I really need 2 foods. I can do with 1 water or if you are in a giving mood then maybe I can have 2 waters? 🙂'
Utterance: 'Looks like we both really need the food.  If you get 2 food I would need 1 food, 2 water and 3 firewood. '

Ex Output:
No


Ex Input:
Context: 'I do need some myself as well' 'I suppose it is important - we'll definitely have split that up somehow. ' 'Well how about this. I take all the Food, and 1 Water. You get all the Firewood and 2 Water.'
Utterance: 'we're definitely thinking alike - That extra water would go a long way to keep us safe and comfortable'

Ex Output:

Yes