Closed brep problem

grasshopper honeybee-legacy
1

Hi! I’m doing a homework where I must have a Closed Brep, but it’s not appearing, instead there an empty brep in pink, can anyone please help me? Thanks!

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image1920×3413 774 KB

I should have it like this

3

But instead it’s giving me this

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image1920×3413 913 KB