Generate an acrostic poem with a given word.
Rainbow
Radiant light arching across the sky
After every rainfall and storm passes by
It's colors all blend, yet each so unique
Nature's painted arc, a treasure to seek
Brilliant hues that light up the view,
Over hills and above treetops it's true
Wonders like this, nature does bestow.
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate an acrostic poem with a given word.

### Input:
Rainbow

### Output:
Radiant light arching across the sky
After every rainfall and storm passes by
It's colors all blend, yet each so unique
Nature's painted arc, a treasure to seek
Brilliant hues that light up the view,
Over hills and above treetops it's true
Wonders like this, nature does bestow.