Data point 1: entity=a, feature 1, feature 2, ..., feature nData point 2: entity=a, feature 1, feature 2, ..., feature nData point n: entity=a, feature 1, feature 2, ..., feature nEntity a:Data point 1: entity=b, feature 1, feature 2, ...,feature nData point 2: entity=b, feature 1, feature 2, ..., feature nData point n: entity=b, feature 1, feature 2, ..., feature nEntity b:The data points are labelled by colour. There are multiple data points collected for the same entity.Data point 1: entity=c, feature 1, feature 2, ...,feature nData point 2: entity=c, feature 1, feature 2, ..., feature nData point n: entity=c, feature 1, feature 2, ..., feature nEntity c: