Task: 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 no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.
Categories: Negotiation Strategy Detection
Domains: Dialogue

Positive examples:
input: Context: 
Utterance: 'how about I give you 2 waters and 1 food package in exchange for all your firewood?'
output: No
explanation: The utterance does not use the no-need strategy since it never refers to an item that the participant does not need.; input: Context: 'Hi, how are you?' 'Great, how are you?' 'Pretty good, planning my camping trip, checking on supplies.'
Utterance: 'Here too, looks like the weather has changed for us. We won't have enough water to last as we forgot it. Food, we have some snacks, but not enough to get by for our trip. I'm not overly concerned about firewood since it's so hot. But I'm really concerned about water.'
output: Yes
explanation: The participant uses no-need when describing that they are not concerned about firewood.; input: Context: 'Hello, I'm in a strong need for food and water. Please let me have a few packages of food and water. I'd gladly trade all my firewood for it.' 'Hello. Wow! That does not sound good. My sister just called and let me know she will be coming tonight. She is bringing food so i have plenty to share. 🙂' 'That's some good news. 🙂 Are you sure she is going to be bringing food with her?'
Utterance: 'Yea She is bring tons of food. So don't worry we have plenty of food to spare. 🙂 She did forget to get water. I didn't know she was coming so i didn't grab any and I forgot the 3 packages of water for myself at the store. ☹️'
output: Yes
explanation: The participant explains that they will have plenty of food, so they are using the no-need strategy.; input: Context: '(sorry for the misspellings on above post, my keyboard does that) Ok since that  is your highest priority , I have 2 food 1 water and 2 firewood ? Is that agreeable ?🙂' 'What do you think about this offer, I will give you 2 of FOOD since it is what you need the most, 1 of WATER since it is what I need and 2 of WOOD, I will have less wood but we will both be satisfied.' 'Yes very agreeable ! Thank you .🙂'
Utterance: 'Ok! Thanks.🙂'
output: No
explanation: The utterance does not use the no-need strategy since it never refers to an item that the participant does not need.; input: Context: 'I agree, with camping i feel there are many uncertainties. Finding clean water would be too difficult, best to take as much water as possible. ' 'I will also need some Firewood too to start a fire' 'I feel for firewood we dont need as much, as we are going to be camping, with that means, in my opinion, with branches and brush available, maybe we can take 2 fire woods, what do you think?'
Utterance: 'Since I got some food already, can I get 3 water, 2 firewood and 0 food then?'
output: Yes
explanation: The participant states that they won't need firewood, so the answer is Yes.

Negative examples:
input: Context: 'Hello'
Utterance: 'Hello! How are you doing today?'
output: Yes
explanation: The utterance does not contain the no-need strategy. The correct answer is 'No'.; input: Context: 'Hello, what are your preferences for extra supplies?  I am greatly in need of food and water.  We will be doing a lot of activity in a hot, dry climate.🙂' 'I prefer firewood because I will get cold at night. I forgot blankets ☹️' 'Would it work for you, then, to give me the three food and three water, and I can give you all of the firewood?'
Utterance: 'No. Because I brought a water purifier but don't plan on hunting or fishing. So I'd be willing to give up all the water but I want 2 of the food.'
output: No
explanation: The participant uses the no-need strategy when they say that they brought the water purifier. So the correct answer is 'Yes'.