How do I report rental income from Germany on my tax return in the US?

I am filing my income taxes as resident alien this year and have to report rental income from Germany. As far as I understand, I have to enter the income on my US tax return, but also enter it as negative income again. Where do I do that? On Schedule E? Under which item?

Also, I have to attach form 8833 but I am not sure how to fill it out. One question on the form asks: Which Internal Revenue Code provision(s) is overruled by the treaty? Another question asks about the provision(s) of the limitation on benefits article in the treaty that the taxpayer relies on to prevent application of that article.