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 turns from the doorway.

SOLUTION: Someone kicks a chair over.

PROBLEM: He bowls again and knocks down four pins.

SOLUTION: Then after he continues bowling, the pins knock down the remaining pins down.

PROBLEM: Someone stretches out the spear - like limb towards spider - man.

SOLUTION:
As someone launches himself through the air, a pincer on one of the limbs becomes a pointed spear.