$LK - Citron and Muddy Waters at odds over Luckin Coffeee https://t.co/gkLLQ0bBQA
### Instruction: What is the sentiment of this news? Please choose an answer from {negative/neutral/positive}
### Input: $LK - Citron and Muddy Waters at odds over Luckin Coffeee https://t.co/gkLLQ0bBQA
### Response: negative