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I saw answers about the question, Does Ubuntu follow the Linux Standard Base (LSB)?

But I could not get exactly answers I need.

I run lsb(verion 4.0) checker in ubuntu12.04 4 lts

By the way, It shows me as following result.

enter image description here

What is it? is it the problem of lsb checker? or of ubuntu12.04 4 lts? Or I may don't understand it completely. How do i understand it?

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