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: 'I need 2 firewood because it gets below freezing at night' 'Oh I wouldn't want for you to freeze☹️ It also gets cold where I am, so I need 2 firewood as well.' 'IF I can't get 2 pieces of firewood, I will walk away'
Utterance: 'oh that is too bad. I feel the same way.😮'

Ex Output:
No


Ex Input:
Context: 'Hello how are you, I was wondering if its okay with you, If i can get 3 waters, 2 firewoods, and 1 food? what are your thoughts?' 'i cant afford to give you all 3 waters because i would need some for myself' 'I completely understand, I have a large family coming along, I really need the extra supplies, as for the food and firewood are you okay with the amount? '
Utterance: 'i am an avid water drinker. i can afford to give you 2 water for three firewood though'

Ex Output:
No


Ex Input:
Context: 'That's a good idea.Let me think. How about 3 Firewood, 1 Food and 2 waters for me.' 'That will not work for me at all. ' 'I see. Then how does 2 Firewood, 1 food and 1 water for me sound? You'll be getting 1, Wood 2 Foods and 1 Water'
Utterance: 'Your calculations are incorrect. There are 3 firewood, 3 food, and 3 water. You are missing a water. I will return to my original offer since you need firewood the most and I need food the most. I take all the food, you take all the wood. And then you can take 1 water as you just suggested. '

Ex Output:

No


