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: 'Forest, for sure. Deserts have scorpions and tarantulas and I'm scared of those.' 'Amen! Me too! 🙂 I too was thinking of going to the forest. Is your forest going to be wet or pretty dry?' 'It'll be pretty dry. I don't want to catch a cold. '
Utterance: 'I wanted to a rainforest near where I live. I love listening to the rain. Did you think that you were going to need all of the firewood since you can get dry wood from the trees?'
Example Output: Yes

Example Input: Context: 
Utterance: 'Hi there! I was looking for 3 extra packages of food and 3 packages of firewood.'
Example Output: No

Example Input: Context: 'if you think I am not being fair can I have what you are asking for?' 'you told me i not fair that why i told you are not fare,3 food for me  will give 3 firewood for me, give 2 water for me, other we can end the deal and both we can forget the bonus' 'ok'
Utterance: 'then what will do ? if you ok for 3 food for me , 3 firefor you, 2 water for me , for this deal we can go forward?'
Example Output:
No