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: '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?'

Ex Output:
Yes


Ex Input:
Context: 'me too. I don't care about water since we are camping near a river.' 'I would consider giving you all food and water if I could get all of the wood.' 'Oh really? I think I am able to do it without firewood then. The kids will be full and probably won't ask for smores'
Utterance: 'Or 1 wood for you and 2 of food and water?'

Ex Output:
No


Ex Input:
Context: 'What are you most interested in getting?'
Utterance: 'I think food is my highest priority, What about you?'

Ex Output:

Yes