instruction:
Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
question:
To someone's surprise, he unfastens his artificial metal leg and places it on a stand.
answer:
He hobbles painfully towards a chair and sits down.

question:
Someone rolls her eyes, crosses to the door and lets someone in.
answer:
Someone is sitting on her bed.

question:
They are on a street.
answer:
Someone holds someone's left arm.