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: 'The 2 packages of food and 2 waters. I get thristy a lot too.' 'Ok, well if I can have 3 packages of firewood, 1 water and 1 food, you can have 2 packages of food and 2 waters. Does that sound good?' 'I like that deal. '
Utterance: 'Sounds good.🙂'

A: No
****
Q: Context: 'I am running low on firewood. I need more to keep the fire going and cook food. ' 'Yeah I need firewood too. It's only 50 degrees at night on the mountain, even in the summer.' 'How would you feel about giving me some firewood for food?'
Utterance: 'Maybe, I need food too but I want firewood the most.'

A: No
****
Q: Context: 'Hi there, how are you doing today?' 'I am doing well, thanks! ' 'That's good to hear. I am going camping this weekend and need some extra supplies. What about you?'
Utterance: 'That's great! I also have a comping trip planned. We will be having an all night dance party. I could definitely use some extra supplies. What are you in need of the most?'

A:
Yes
****