U.S. President Joe Biden said he was "proud" of Apple Inc workers in Maryland who voted on Saturday to join a union, becoming the first retail employees of the tech giant to unionize in the United States.
### Instruction: What is the sentiment of this news? Please choose an answer from {negative/neutral/positive}
### Input: U.S. President Joe Biden said he was "proud" of Apple Inc workers in Maryland who voted on Saturday to join a union, becoming the first retail employees of the tech giant to unionize in the United States.
### Response: moderately positive