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: 'Then How about I get two foods, 1 firewood and 1 water?' 'Like i said food is my top priority so i will not do well with less than 2.' 'Then you get two food and no firewood here.😮'
Utterance: 'You mean you can't let up one firewood for me?'

SOLUTION: No

PROBLEM: Context: 'hello' 'Hi friend. How is your day?'
Utterance: 'yes good, what you want?'

SOLUTION: Yes

PROBLEM: Context: 'Hi, I really need water to stay hydrated during my camping trip because my food supplies are low. Do you have any to spare?' 'Hi.  I can't do that right now.' 'Is there anything that you might need? '
Utterance: 'I would be interested in firewood.  Can I ask you, what are your primary concerns on this trip?'

SOLUTION:
Yes

