instruction:
In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
question:
How do you write an effective but gentle reminder email?
answer:
Is there any simple reminder app?

question:
What is reeducation?
answer:
Who developed the ideas and practices of reeducation in early 20th century totalitarianism?

question:
What's the difference between a promise and a callback in Javascript?
answer:
What is the difference between Javascript, JSP, Node.js and EJS? From where should I begin?