Given a list of geographical features, classify each one as either a natural or man-made feature.
River, Street, Beach
River (natural), Street (man-made), Beach (natural)
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Given a list of geographical features, classify each one as either a natural or man-made feature.

### Response:
River (natural), Street (man-made), Beach (natural)