Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
In the following paragraph identify the main subject and two subordinate subjects.

### Input:
Albert Einstein’s contributions to science were enormous, and he changed the way people think about the universe and about themselves.

### Response:
Main Subject: Albert Einstein's Contributions
Subordinate Subjects: Science, Universe and People.