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: 'Hi there, I hope I would be able to leave with some needed items'
Utterance: 'Likewise! What are you in need of'

SOLUTION: Yes

PROBLEM: Context: 'Hello!  I'm going to be heading out on a big camping trip and will need to take some extra supplies.  Are you going camping as well?'
Utterance: 'I am also going camping! What do you think you're going to need the most of? What are your preferences?'

SOLUTION: Yes

PROBLEM: Context: 'Well, I am pre-diabetic, so I had to do it for my health. I love food, too...especially sugar!  🙂🙂' 'Oh, that does change things a lot. Diabetes is a hard disease to have to deal with. So you want more firewood than water? And less food than water?' 'Well, I don't know.  I think I would like more water than firewood, but yes less food than water.  I'm a pretty easy going person though! 🙂'
Utterance: 'Ok, let me know what you think and we will go from there. I do prefer more food and firewood than water though.'

SOLUTION:
No