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.

Q: Context: 'Hello. I am so looking forward to this camp out. My daughter just called and said she is going to come and bring some of her firiends. 🙂' 'Hello! That sounds pretty reasonable to me. I was going out with a bunch of my buddies. We like to hike a lot in the sun, so we need lots of water. How does it sound if i take all the food and water, but you get all the firewood?'
Utterance: 'I love hiking. My daughter is bringing extra water. So we could trade the water for the firewood. We do need just a little food as I didn't plan on having an extra person.'

A: No
****
Q: Context: 'Hello, I want to keep 3 packages of the water and 2 packages of the food and 1 package of the fire wood , and you can keep 1 package of the food and 2 packages of the firewood.'
Utterance: 'Could I get 1 package of the water just to be entirely safe?? I really appreciate the 2 packages of firewood as it has been very wet and rainy where I will be going.  There will be a lot of standing water, so my chances for having safe water to drink might be a little iffy.'

A: No
****
Q: Context: '😡 I can let the firewood and water lax if you provide us food.' 'let me have two food and three parts of water, I can let you have all the firewood and one fpart food' 'We do have a fire to start, but we are very hungry. Diabetics can eat less food because of the small meals. Don't lie to me.'
Utterance: '😡my type of diabetes needs many meals otherwise my insulin levels will be low'

A:
No
****