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: 
Utterance: 'I want all the water and all the food. What do you want?'

SOLUTION: Yes

PROBLEM: Context: 'Hello, I will start out by saying that I would like to have 3 water because I do not have a nearby water source. What is your situation?' 'Hello. I have a health issue that I need to stay hydrated at all times. I do understand your situation though. '
Utterance: 'How much firewood and food do you think you need? '

SOLUTION: Yes

PROBLEM: Context: 'With little firewood, I need the food since I can't cook fish.  How about you get 2 firewood, one food, and 1 water?' 'how about i get 2food because it is very important to my health' 'Okay, how about you get 2 firewood, 2 food, and I get 1 firewood and 1 food and all the water?'
Utterance: '☹️ no i also need water,i get dehydrated easily'

SOLUTION:
No

