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: 'Well some is okay but not all. The thing is that we left in a hurry and forgot to pick up the bag with the extra food items. I am sorry but we have kids with us so we will need the food. Am sure you understand ☹️' 'Fair enough I understand that you have hungry kids. If I give you the majority of food can I get a majority of the other two items?' 'Well, what if I take all food and 1 water and you take the rest. Will that work for you? we do have enough firewood.'
Utterance: 'No I was thinking I would get all the waters and you get 1 firewood or I get one food 2 waters and 2 firewood. '

Ex Output:
No

Ex Input:
Context: 'Okay! You can have all the water. I want all the food.' 'yeah sure, I will share with you all the food. What is about firewood?' 'You can have two if I can have one if you're okay with that.'
Utterance: 'My place is so cold, so I want all the firewood for save my children from cold.'

Ex Output:
No

Ex Input:
Context: 'Hi, I will need alot of water as I need it to stay alive.' 'I agree, with camping i feel there are many uncertainties. Finding clean water would be too difficult, best to take as much water as possible. ' 'I will also need some Firewood too to start a fire'
Utterance: 'I feel for firewood we dont need as much, as we are going to be camping, with that means, in my opinion, with branches and brush available, maybe we can take 2 fire woods, what do you think?'

Ex Output:
No