Task: Text Completion
Input (English): Sentence1: Terence took his brothers boomerang and threw it as hard as he could. Sentence2: He was angry at his brother, and wanted his brother to chase it back. Sentence3: Terence laughed and turned around to walk away. Sentence4: As he did, something hit him in the back of the head.
Output (English): Terence didn't know that boomerang's returned to the thrower.