Given a text, classify the text into one of the following categories: fiction, non-fiction, opinion, or other.
This essay is about the importance of nature conservation.
The text can be classified as "non-fiction."
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a text, classify the text into one of the following categories: fiction, non-fiction, opinion, or other.

### Input:
This essay is about the importance of nature conservation.

### Output:
The text can be classified as "non-fiction."