Create a simile to compare item X with item Y.
X = Heavy rain
Y = An endless waterfall
Heavy rain is like an endless waterfall pouring down from the sky.
Complete the following task based on the instruction and optional input provided.### Instruction:
Create a simile to compare item X with item Y.

### Input:
X = Heavy rain
Y = An endless waterfall

### Output:
Heavy rain is like an endless waterfall pouring down from the sky.