In this task you are given a sentence with one coordinating conjunction (for, and, nor, but, or, yet, and so). You must judge whether the order of two coordinated clausal conjoints have been inverted or not. Inversion would result in the sentence sounding unnatural. Label the instances as "Original" or "Inversion" based on your judgment.
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Question: His expression was still inscrutable , but she saw that her words troubled him .

Answer: Original


Question: My window blew open and the man came in .

Answer: Original


Question: She could never be considered fluent , but in high school she 'd taken a couple of years of the language .

Answer:
Inversion