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]: Solange had to moisten her lips twice before she could get a word out and then it was a croak .
[EX A]: Original

[EX Q]: " I 'm not worried about my legs , " he said , " but I don 't want to be paralysed all my life . "
[EX A]: Original

[EX Q]: Tall trees stubbornly climbed the mountains until they reached the heights where even the most tenacious couldn 't survive the slope and the undoing .
[EX A]:
Changed