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: 'Great! What extra supplies would you like to bring?' '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'
Utterance: 'How nice of you. I certain we can work something out. 🙂'

Ex Output:
No


Ex Input:
Context: 'Hello! I'm packing for my camping adventure.' 'I am too.  I am so looking forward to this.  ' 'Yes! I am so on the same page as you. I want to be sure I'm set and prepared. 🙂'
Utterance: 'Would you consider letting me have 2 of the 3 extra firewood?  I have health issues and I get really cold sometimes.☹️'

Ex Output:
No


Ex Input:
Context: 'I don't have a problem with you having extra water.  I'll give you all the water, if I can have all of the firewood.' 'I think that's more than fair. That only brings up the food to be divided. One of us is going to have to take less.' 'I'd be fine with taking less food.  So, I would get 3 firewood, 1 food, and 0 water.  Is that correct?'
Utterance: 'And I would get 0 firewood, 2 food and 3 water. That seems right to me.'

Ex Output:

No