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:
Find a sentence in a given text that best describes the theme of the text.

### Input:
Text:
The sky had been growing dark for hours, and far off in the east there was the faintest hint of silver.

### Response:
The faintest hint of silver in the east indicates that the sky is beginning to brighten.