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.
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Question: Context: 'Well I am going to have to think about this deal. Perhaps I can contact my friend and see if he can get some extra water. He is a big eater so the food may come in handy. ' 'That would make things better for me.  ' 'Can I ask you why you need so much water for one person? '
Utterance: 'Hiking in the summer, I sweat a lot and I don't want to risk getting dehydrating and sick out in the woods.'

Answer: No


Question: Context: 'Hi! I've made some mistakes so I need some extra supplies. ☹️ Which item do you need the most?' 'I need water the most we are campin  in arizona how about you' 'Oh no. I need water the most too!'
Utterance: 'well this should be intersting what do you need second most?'

Answer: Yes


Question: Context: 'We will need some extra water for all the girls on the hike.' 'Sorry, I sent my last message inadvertently. I meant to say that that sounds great! Yes, I can understand the need for extra water for the hike. With the size of my family, I could use a bit of extra food for our trip.' 'We can get by with less food since the girls will be looking to forage in the forest to get a badge.'
Utterance: 'That's awesome! Since we have the basics, would you be willing to swap 3 packages of food for 3 packages of water?'

Answer:
No