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.

Q: Context: 'With little firewood, I need the food since I can't cook fish. How about you get 2 firewood, one food, and 1 water?' 'how about i get 2food because it is very important to my health' 'Okay, how about you get 2 firewood, 2 food, and I get 1 firewood and 1 food and all the water?'
Utterance: '☹️ no i also need water,i get dehydrated easily'

A: No
****
Q: 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?'

A: No
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Q: Context: 'That sounds fair, how much food do you feel you need? ' 'I would prefer 2 because it's really easy to underestimate how much I could need.' 'That's fine, I'll take 1. I think I have enough with what was originally given. '
Utterance: 'Sounds good! So I get 3 firewood, 2 food, 0 water; you get 0 firewood, 1 food, 3 water?'

A:
No
****