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]: He looked dusty and ordinary in comparison beside Sam 's black flop of hair and golden eyes .
[EX A]: Original

[EX Q]: Maybe she 'd dubbed herself on his heart when she was born .
[EX A]: Changed

[EX Q]: However , with no guarantees it takes time and patients to master it .
[EX A]:
Changed