you probably have to have a couple of different people doing it so that they can it's not like it's one person's bias it's a few people who are collectively doing so it's very time-consuming it takes a lot of Human Resources to do all of that labeling so semi-supervised learning algorithms have been developed for the cases where we only have a small amount of labeled data and I'm a very small amount when there is a huge amount of data that could potentially be there so what I said about sentences there's unlimited possibilities for sentences