This uses PhantomJS and paraphrasing-tool.com to create paraphrases of strings.
You must have Docker installed. First, build the image:
$ docker build -t paratool .
Next, you can paraphrase a string:
$ export MESSAGE="The quick brown fox jumps over the lazy dog."
$ docker run --rm paratool paraphrase "$MESSAGE"
The brisk chestnut fox bounced over the sluggish puppy.