Task: Sentence Perturbation
Input (English): sentence: The actress used to be named Terpsichore , but she changed it to Tina a few years ago , because she figured it was too hard to pronounce . aspect: Number
Output (English): The actresses used to be named Terpsichore and Melpomene ,  but they changed them to Tina and Melanie a few years ago ,  because they figured they were too hard to pronounce .