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: 'What are you most interested in getting?'

SOLUTION: Yes

PROBLEM: Context: 'Unacceptable' 'why' 'I require the majority of food as I have explained.'
Utterance: 'what is priority pls tell me'

SOLUTION: Yes

PROBLEM: Context: 'Hello, that sounds good. How are you today?' 'I am doing okay but am in need of some supplies. What about you?' 'Same here. My kids are really looking forward to this. What is most important to you?'
Utterance: 'Firewood! I need it to cook my food and also to stay warm. What about you?'

SOLUTION:
Yes