Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: Unobserved, Susanna re-enters the bedroom with the clothing and conceals herself after she realises what is wrong (She knows that to reveal her presence would only result in the worst possible consequences to the Countess).

Unseen, Susanna re-enters the bedroom with the clothing and hides after she realizes what is wrong (She knows revealing herself would result in the worst possible consequences to the Countess).