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 Q]: Context:
Utterance: 'Hello. What are your preferences for extra items for your camping trip?'
[EX A]: Yes

[EX Q]: Context: 'That makes sense. How about we start out with I get 3 firewood, and you get 3 waters?' 'Great idea, that works for me. 🙂' 'Okay, let's do that, and then split the food. Since there are only 3, do you want to flip a coin to see who gets 2 of those?'
Utterance: 'That sounds fair, how much food do you feel you need? '
[EX A]: Yes

[EX Q]: Context: 'me too. I don't care about water since we are camping near a river.' 'I would consider giving you all food and water if I could get all of the wood.' 'Oh really? I think I am able to do it without firewood then. The kids will be full and probably won't ask for smores'
Utterance: 'Or 1 wood for you and 2 of food and water?'
[EX A]:
No