Task: Information Extraction
Input (English): Sentence1: Greg received a call from a telemarketer. Sentence2: They offered him an opportunity to renew his car's warranty. Sentence3: Greg purchased the policy for three thousand dollars. Sentence4: A few months later Greg's car broke down. Sentence5: His mechanic said the repairs were not covered under the warranty.
Output (English): Telemarketer, His mechanic, Greg