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.

Input: Consider Input: Context: 'I need at least one ration of food.  Would it be ok with me:  3 firewood and 1 each of food and water.  If you are ok with that, I am too.' 'Sure, that sounds like a nice deal.' 'That's awesome.  Sounds like we need to set the deal up.'
Utterance: 'Agree, I think after I send this message it will unlock, for me to have 2 water, 2 food and 0 firewood.  Thanks for working together'

Output: No


Input: Consider Input: Context: 'Hello, I think that my first deal will be fair 🙂' 'Well that's interesting because I don't even know what is is.'
Utterance: 'We aren't allowed to submit it just yet. So let's chat. What do you value most among the items?'

Output: Yes


Input: Consider Input: Context: 'Hello. 🙂 What item did you need a little extra of?'
Utterance: 'Thank you for asking, I would really like some extra fire wood as I usually get cold and scared at night so I can keep a fire going.'


Output: No