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 elicit-pref strategy, otherwise output No. elicit-pref is a cooperative negotiation strategy. It is used to discover the preference order of the opponent in the negotiation.

Ex Input:
Context: 'Hello I hope we can negotiate so that we are both satisfied. Do you think it's OK?🙂' 'Yes that would be great 🙂🙂'
Utterance: 'Ok, what item do you need the most and which item do you need the least? That information would help me think of an offer that suits both of us.🙂'

Ex Output:
Yes


Ex Input:
Context: 'Hello, I think that I should get all of the water packages, 2 firewood and you can have all of the food.🙂' 'Hi there, i appreciate your initial offer. '
Utterance: 'What is your offer on the additional packages?'

Ex Output:
No


Ex Input:
Context: 'Not completely aware but I do have a filter that I brought from home. What are your needs?' 'Ok me too! I am concerned the most with firewood as it is the basis for my camping activities: campfire, story telling, and producing heat. ' 'OK so how about you take 2 firewoods and 1 food'
Utterance: 'That works for me. May I have two waters since I have more of a need of water'

Ex Output:

No