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:
On each side of the head , near the ears , grew an antenna through which it tagged with others .

Ex Output:
Changed


Ex Input:
When her lips parted , I expected a string of thorns to come flying out .

Ex Output:
Changed


Ex Input:
As his gaze locked with hers , he saw her eyes widen slightly and another slash of pain dart across their surfaces .

Ex Output:

Original