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 no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.

Q: Context: 'Hi, I am looking at extra items for my camping trip and would like to have 3 firewoods, 3 foods and 2 waters.'
Utterance: 'Hey, I am excited to go camping too!  Would you mind sharing your top priority items with me so that we can come up with a fair deal?  Ideally I would love 3 firewoods, 3 foods, and 2 waters just like you aha.  But perhaps we can each get at least 3 packages of our highest priority item '

A: No
****
Q: Context: 'Hi! I like to hike so I really need more water. Could I take 2 packages of water and 1 of food and 2 of firewood?' 'I am ok with the water, i just would like one water and one food, but i would appreciate two firewoods, i get cold at night  '
Utterance: 'We both sound pretty reasonable! So you think you need 2 firewood?'

A: No
****
Q: Context: 'Hi, I hope we can work together to get an offer that benefits both of us.🙂' 'I agree! Nice to meet you... I have two boys who always eat! Any chance I canget 2 food?'
Utterance: 'Food is the item of greatest value to you?'

A:
No
****
