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.

Ex Input:
Context: 'That would be great if you could! ' 'I can do that! What's your next highest priority? I would prefer 2 firewood as I need to be warm at all times and plan to camp in the cooler weather' 'I can easily give you two firewood! One should be more than enough for me. Especially since you helped me out with the food!'
Utterance: 'I would appreciate that! How do you feel about water? I would like at least one water.'

Ex Output:
Yes

Ex Input:
Context: 'Hi. Can you help me get supplies for my camping trip?🙂' 'Hello fellow camper! I'm pretty sure I can help you. 🙂' 'Okay, great! What do you need the most?'
Utterance: 'I am looking for food, me and the kiddos need to eat many snacks for energy while exploring hiking trails. What about?'

Ex Output:
Yes

Ex Input:
Context: 'We aren't allowed to submit it just yet. So let's chat. What do you value most among the items?' 'Please don't try to order me around. 😡 I require a majority of water.' 'Let's be reasonable here. If you are nice to me I'll be nice to you. I'll take the majority of the wood and food if you want most water.'
Utterance: 'Again don't patronize me. What is your main focus?'

Ex Output:
Yes