Definition: 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.
Input: Context: 'Oh wow! I don't want you to be that cold! :o  If I can have 3 food, I'd be happy for you to have 2 firewood.' 'That would be great, I'm not real hungry, so I can spare some food.' 'That sounds fair to me! So we've got 2 water and 2 firewood for you, 3 food and 1 each water and firewood for me.'
Utterance: 'Yes, you're very kind. I desperately need some more water and firewood.'

No