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.

Context: 'That seems fair. How about water. How would that be split? I'm very concerned.' 'Me too. There is little natural sources where I'm going. ' 'I'm not familiar with my surroundings. None of us going have ever been to this spot.'
Utterance: 'I mean I would give two waters if I could get one more food. So 2 water for you and 2 food.'
No