Question 2 gets an unexpected grading error

Question 2 gets an unexpected grading error and I am referred to this forum. All test passed and with the other questions I have 10 / 10. I have allready retried the test, refreshing the notebook first, but it hasnt worked.

I do see that the expected results are different from my actual results. do you know what is wrong?

[
    "Pluto's geological activity and features",
    "Insights from New Horizons data",
    "Future exploration of Kuiper Belt Objects"
]

Expected Output:

[
    "Unique Topic 1 as a string",
    "Unique Topic 2 as a string",
    "Unique Topic 3 as a string"
]

Hi @Debby1,

Firstly, the expected results for this exercise are an indication that (1), you need 3 strings,(2) each string needs to be different, and (3) given the nature of this exercise, what you might get as an output is going to be different than what I might get. So the important thing to note are (1) and (2).

Now, you mentioned you get an unexpected grading error for ex 2, for this, I’m going to send you a direct message.