more diversity and improve your training training set and in another you might need to rotate the images etc so basically it's a again coming back to the idea of being a targeted policy and this is something that you can vary on a task by task basis so even on a particular data set you can see what's the optimal augmentation approach any questions on this one so that was the one that they applied for vision and then they have to for text one is back translation so the general idea here it's pretty intuitive you take a question in one language in