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.

Ex Input:
Context: 'Since it's hot there, I get thirsty and dry real quick. 😡' 'Oh ok, well I plan on bringing some juice, beer and other drinks. So I could spare some extra water. And I am pretty good at fishing, so I won't need much food either' 'How nice of you. I certain we can work something out. 🙂'
Utterance: 'How about I get 3 firewood 0 water 2 food, and you get 0 firewood 3 water 1 food?'

Ex Output:
No


Ex Input:
Context: 'Hi there, I hope I would be able to leave with some needed items' 'Likewise! What are you in need of' 'The basics of man -  food and water'
Utterance: 'Ah, okay, I could use some of that too! Which one do you need most?'

Ex Output:
Yes


Ex Input:
Context: 'hello, I need plenty of food, I have lots of friends we are camping together.' 'bro i need aslo food, it is  my first priority'
Utterance: 'what is is your second item in your priority list?'

Ex Output:

Yes