Task: Information Extraction
Input (English): Sentence1: Fred was a worker on his uncle's dock at the pier. Sentence2: He would work everyday cleaning, and catching fish. Sentence3: One day, he noticed a rather large fish in his nets. Sentence4: When he looked a second time, he realized the fish was a dolphin. Sentence5: Fred worked quickly to free the fish from the nets and release him.
Output (English): Uncle, Dolphin, Fred