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.

[EX Q]: It was titled : Riddle of the Pink Pyjamas The writing was hard to make out .
[EX A]: Original

[EX Q]: Shira is supposed to take a last look at the cottages she was interested in .
[EX A]: Original

[EX Q]: The little creature shook his head , " you are lucky , the procedures are simply but the results are complicated " .
[EX A]:
Original