TASK DEFINITION: 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.
PROBLEM: Context: 'Hello, I'm going camping today and I can't wait!' 'Nice, so are we!'
Utterance: 'That is awesome! The one bad thing about my campsite is there's no stream or lake nearby. I'm going to need a lot of it so I can shower/wash up'

SOLUTION: No

PROBLEM: Context: 'I would need 2 out of 3 as well.' 'Interesting - you're essentially saying that you need the majority of two of the three items. Hmm...' 'Yes, thats all. I need 1/3 food, 2/3 water, and 2/3 firewood.'
Utterance: 'Still not convinced in any way that you need more items in total over me. Please clarify!'

SOLUTION: No

PROBLEM: Context: 'I really need some more food. I only have the basics, and I'm afraid it's not going to be enough. What about yourself?' 'I really need water because I take medication that requires drinking a lot of water. The firewood I dont need to much off and I need very little food as I am dieting. lol 🙂' 'I totally understand that. And it's pretty important, lol '
Utterance: 'It sure is..So how much food do you need for the trip? Do you need firewood to cook the food? Thank you for understanding my issues. 🙂'

SOLUTION:
Yes