TASK DEFINITION: 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.
PROBLEM: Context: 'I'm doing well. We're desperately needing wood. We didn't realize how cold it would be as it is our first time here. There is none around our area so we are really concerned about staying warm especially at night. We also forgot a bag of food, so that's another need for us.' 'True. Turns out i'm dealing with similar situation, we didn't expect weather to be as cold, so extra wood is on my mind as well. Everyone might need to go to bed earlier and cook food that cooks short time since we low on wood !' 'Yes, that's very true. I would be willing to give up water for more firewood.'
Utterance: 'I like that. I could help you out. I'd be interested in giving you some extra food for extra water. We like to go far from campsite to hike and get up to high elevation, so i need to pack extra water just in case. We go during day, when it's warmest and need extra food in case we come back at nigh time or get lost! Not ideal. '

SOLUTION: Yes

PROBLEM: 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.'

SOLUTION: Yes

PROBLEM: Context: 'Are you willing to budge on one water for me? I have 5 people in my group and they really could use one package of water. It is hot out nowadays. ' 'If i gveyou one then you have to spare me all water food with 2 water deal?' 'So you will take 2 water and 2 food? If that is the case, deal.'
Utterance: 'i said if am going to spare you a water then i will have 2 waters and 3 foods and no firewood'

SOLUTION:
No