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:
What is the trick to open vault or apps and data secured by vault apps (android mobile)?
answer:
Is there any mobile app certification in market which can give assurance to app users about security of their data and app?

question:
Could you explain the Datum concept that is used in engineering drawing?
answer:
Can you explain about engineering drawing?

question:
What is Palm Pre software?
answer:
What is Palm Pre?