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by gault8121 4447 days ago
I'm building Quill.org, a web app that provides interactive English grammar lessons.
1 comments

This is really neat. What powers the corrections? I was stunned by the results of the paragraph about Shackleton.
Thanks for the feedback! The errors are manually seeded into the passages. We've built approximately 30 hours worth of lessons at: http://www.quill.org/lessons