Given some text, find and return the shortest sentence in it.
He started to speak but quickly stopped. She looked away as she said, "I don't want to hear it."
"I don't want to hear it."
Complete the following task based on the instruction and optional input provided.### Instruction:
Given some text, find and return the shortest sentence in it.

### Input:
He started to speak but quickly stopped. She looked away as she said, "I don't want to hear it."

### Output:
"I don't want to hear it."