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: 'I think if you let me have 2 waters I might survive this scourge!' 'I think that your reasons are very compelling.  I would also like to survive.' 'Oh, I want you too as well😮'
Utterance: 'Thank you partner!'

SOLUTION: No

PROBLEM: Context: 'Hi there.. we're looking forward to this camping trip.. hope you are, too!  Is there anything in particular you guys need / want out of the extra stockpile we've got?'
Utterance: 'Hello! Which item do you need the most?'

SOLUTION: Yes

PROBLEM: Context: 'I have a lot of water around me I can use. So I can give you a lot of extra.' 'Ok nice I will give you 3 food if you give me 3 water' 'OK, that works for me. But I would like a lot of firewood. I like to hunt and cook what I kill.'
Utterance: 'Ok I will give you 2 firewood '

SOLUTION:
No