Classify these four musical instruments.
Violin, Saxophone, Trumpet, Clarinet
Violin is a string instrument. Saxophone, Trumpet, and Clarinet are all classified as woodwind instruments.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify these four musical instruments.

### Input:
Violin, Saxophone, Trumpet, Clarinet

### Output:
Violin is a string instrument. Saxophone, Trumpet, and Clarinet are all classified as woodwind instruments.