TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: Someone gives her husband a tight smile.

SOLUTION: He places someone's bag over her shoulder and opens the door to let her out.

PROBLEM: Now, he heads down a flight of stairs.

SOLUTION: He gives someone a piercing stare and she looks away.

PROBLEM: Someone enters the living room and smiles at what he sees.

SOLUTION:
Someone walks quietly down the sidewalk towards his home.