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 hope we can negotiate so that we are both satisfied. Do you think it's OK?🙂' 'Yes that would be great 🙂🙂'
Utterance: 'Ok, what item do you need the most and which item do you need the least? That information would help me think of an offer that suits both of us.🙂'

SOLUTION: Yes

PROBLEM: Context: 'hello'
Utterance: 'Hello, what would you like for the packages?'

SOLUTION: Yes

PROBLEM: Context: 
Utterance: 'Hello! And happy camping! 🙂 To start off, I am thinking that I will need at least 3 firewood, 2 water and 1 food. Last time my axe broke and we ran out of wood! What do you think/need?'

SOLUTION:
Yes