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.
--------
Question: said Ian in merchandise , " is this some strange test ?

Answer: Changed


Question: And then they headed out the door , taking a preference to the locker rooms .

Answer: Changed


Question: The purpose of the research center was to develop new technology to observe Earth from space , as well as reincarnation of the abovementioned technology in life .

Answer:
Changed