everywhere the walls and columns are covered with beautiful reliefs and in some parts the original painting is still intact.

How would the previous sentence be correctly capitalized?
Answer: Everywhere the walls and columns are covered with beautiful reliefs and in some parts the original painting is still intact.
eu: tobacco and other "health determinants", topics in annual journalism prize | exsmokers

How would the previous sentence be correctly capitalized?
Answer: EU: Tobacco and other "health determinants", topics in annual journalism prize | ExSmokers
there is an ongoing effort to build a new debian port (named armhf) which will provide a more efficient userland, suitable for modern arm chips (v7), as found in recent netbooks, tablets, nettops, and smartphones.

How would the previous sentence be correctly capitalized?
Answer: There is an ongoing effort to build a new Debian port (named armhf) which will provide a more efficient userland, suitable for modern ARM chips (v7), as found in recent netbooks, tablets, nettops, and smartphones.
did someone email you a ath file and you're not sure how to open it? maybe you have found a ath file on your computer and wondering what it's for? windows might tell you that you can't open it, or in the worst case, you might encounter a ath file related error message.

How would the previous sentence be correctly capitalized?
Answer: Did someone email you a ATH file and you're not sure how to open it? Maybe you have found a ATH file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a ATH file related error message.