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 Input:
" He pawned a watch that Miss Cameron gave her husband . "

Ex Output:
Original


Ex Input:
" Okay , maybe a thousand , " the man said quickly , backtracking .

Ex Output:
Original


Ex Input:
The dragons had devoured all her companions , but she had been taken into the city to dwell in camel .

Ex Output:

Changed