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.

[Q]: Wow , talking to you must have deceived me !
[A]: Changed


[Q]: When he spoke , his voice carried a lilting quality usually reserved for singers .
[A]: Original


[Q]: Soon the train arrived at the frontier with all its border guards and other officials .
[A]:
Original