Task: Sentence Perturbation
Input (English): sentence: My meeting started at 4:00 and I needed to catch the train at 4:30 , so there wasn't much time . Luckily , it was short , so it worked out . aspect: Adverb
Output (English): My meeting supposedly started at 4:00 and I desperately needed to catch the train at 4:30 ,  so there wasn't much time . Luckily , it was short , so it worked out .