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: 'Well some is okay but not all. The thing is that we left in a hurry and forgot to pick up the bag with the extra food items. I am sorry but we have kids with us so we will need the food. Am sure you understand ☹️' 'Fair enough I understand that you have hungry kids. If I give you the majority of food can I get a majority of the other two items?' 'Well, what if I take all food and 1 water and you take the rest. Will that work for you? we do have enough firewood.'
Utterance: 'No I was thinking I would get all the waters and you get 1 firewood or I get one food 2 waters and 2 firewood. '

A: No
****
Q: Context: 'Please grow up. No one is patronizing you. I'm trying to negotiate. Don't be so emotional okay?' 'Grow up. 🙂 This was too easy.  Now please answer the question.' 'I just told what I want in exchange for majority of the water. I'll take most of the food and wood. Or else you make out way better than I do.'
Utterance: 'That is not what I asked.  Is your main focus water?'

A: Yes
****
Q: Context: 'Awesome! That does sound like a deal. I wish we had more firewood to split because I am afraid it might get cold.' 'I agree. I am feeling generous and I did buy a new axe for this camping trip. So, I could stick to the prior agreement and just work a little harder to find some dry trees to chop.' 'I appreciate your generosity 🙂 I think that bringing your axe would be a great idea! Also be sure to pack warm clothes and extra blankets! I'm sure we will both be fine'
Utterance: 'You are welcome! 🙂 I am happy that we reached an agreement! Did you happen to see any dry looking trees on along your way?'

A:
No
****