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 self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

Example Input: Context: 'i understand friend. i need 2 pack of water and 3 pack of food and 2 pack of fire wood. can you please help me ' 'No way can you have everything, I will need 3 packs of firewood 2 backs of water then you can have all the food' 'i have sicked people and kids so i must need food water fire wood. please help me friend'
Utterance: 'I am sick and have a large family if we cant cooperate together we all get nothing'
Example Output: Yes

Example Input: Context: 'I think the fairest thing would be that you keep 1 water, 2 food, 2 firewood' 'How about I take 2 water, 2 firewood, and 2 food, and then you take the rest' 'Let's stay like this, 2 of water, 1 of food, 1 of firewood and you take the rest'
Utterance: 'I really need the water more than the rest of that stuff. I'll take 2 waters, 1 food, and 1 firewood. '
Example Output: Yes

Example Input: Context: 'It's been so cold these last few days, I'm worried that I didn't bring enough wood for the next few nights.' 'That is unfortunate. How about I give you are my firewood for all your food?' 'That is a very generous offer but I think I need to keep some food to be safe. Do you need any water?'
Utterance: 'I can use water, yes. You could have all the firewood, one food ration. Then I could take the water rations and two food rations. '
Example Output:
No