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.

Context: 'They sort of need more water for their meds' 'I'm sorry to hear that! But can you spare 1 for me since you probably don't need all the water.' 'Sure that sounds fair. Thank you. Besides water what do you need for your trip?'
Utterance: 'great. Then can you give 2 food instead? We eat a lot and need more to go through the night...'
Yes

Context: 'Great idea, that works for me. 🙂' 'Okay, let's do that, and then split the food. Since there are only 3, do you want to flip a coin to see who gets 2 of those?' 'That sounds fair, how much food do you feel you need? '
Utterance: 'I would prefer 2 because it's really easy to underestimate how much I could need.'
No

Context: 'How many family members do you have? ' 'Me, my wife and our two kids.' 'I could use 1 package of firewood if your family has other heating options like a butane food cooker.'
Utterance: 'I'm sorry, we really don't have any other options. I could really use 3 packages of firewood--I just can't risk a cold weather injury. Plus I promised everyone we'd be doing things the old fashioned way.'

Yes