TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: Now someone rolls out of bed and towels a magazine.

SOLUTION: Now someone and someone box up a copy of the manuscript.

PROBLEM: He shows him the medal.

SOLUTION: Someone follows someone down into the basement.

PROBLEM: Meanwhile, someone shoots off several columns of bullets.

SOLUTION:
Toting a rifle, someone comes up on his left.