AbstractSentence Simplification has been unprogressive due to the lack of supervised data (particularly in other languages than English). Martin et al. sought to change that by employing unsupervised mining techniques to automate creation of training corporas for simplification in multiple languages from raw Common Crawl web data. The authors used a controllable generation mechanism that adjusts attributes such as length and lexical complexity, leading to mined paraphrase corpora that can be use...