In this task, you are given a sentence. You must judge whether a single noun or verb has been replaced with another word with the same part of speech. The inversion would result in the sentence sounding unnatural, So unnatural sentences will be considered changed. Label the instances as "Original" or "Changed" based on your judgment.

" I know most authors hate doing signings , but I can promise you a success !
Original

We flushed everything else with hydrogen gas and heavily chlorinated water . "
Changed

Should she have gone skiing with him ?

Original