AbbVie will be releasing Phase 2 data for its experimental Cystic Fibrosis (CF) drugs that could potentially compete with Vertex's drugs. VRTX stock may move up or down, inversely related to the AbbVie data set.
### Instruction: What is the sentiment of this news? Please choose an answer from {negative/neutral/positive}
### Input: AbbVie will be releasing Phase 2 data for its experimental Cystic Fibrosis (CF) drugs that could potentially compete with Vertex's drugs. VRTX stock may move up or down, inversely related to the AbbVie data set.
### Response: mildly negative