TASK 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.
PROBLEM: Context: 'Hi we would like you to consider giving us all of the rations for the trip.' 'hello, that could be a good idea, but I think I need more rations'
Utterance: 'How important are they to you? We would like to get a good mix, preferably more food.'

SOLUTION: Yes

PROBLEM: Context: 'Good morning' 'Hi, how goes it?'
Utterance: 'It's going alright. What do you need the most to trade?'

SOLUTION: Yes

PROBLEM: Context: 'Yes, I may need more water.  I am on a diet and I don't really cook either!  Hopefully we can work something out here.' 'That sounds great. I probably need to go on a diet, but I like my food to much. LOL' 'Well, I am pre-diabetic, so I had to do it for my health. I love food, too...especially sugar!  🙂🙂'
Utterance: 'Oh, that does change things a lot. Diabetes is a hard disease to have to deal with. So you want more firewood than water? And less food than water?'

SOLUTION:
Yes

