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.

Example Input: Context: 'Hey there! I'm assuming you enjoy going camping?' 'Yes I do, I am going this weekend. Are you going camping too?' 'Same! I try to go every other weekend.'
Utterance: 'Oh cool. What supplies do you prefer to take the most of?'
Example Output: Yes

Example Input: Context: 'how do you propose we split the food then?' 'Well I don't mind either way about the food. I'll recommend giving you 2 firewood 1 food and 1 water. ' 'how about you get 3 waters and 2 foods? Does that work better?'
Utterance: 'yes how much firewood. I need at least 1 to cook the food.'
Example Output: No

Example Input: Context: 'That sounds fair, how much food do you feel you need? ' 'I would prefer 2 because it's really easy to underestimate how much I could need.' 'That's fine, I'll take 1. I think I have enough with what was originally given. '
Utterance: 'Sounds good! So I get 3 firewood, 2 food, 0 water; you get 0 firewood, 1 food, 3 water?'
Example Output:
No