i asked burnside 's advice on topics of group theory which would be worth investigation and received a postcard in reply containing valuable suggestions as to worth-while problems.

How would the previous sentence be correctly capitalized?
Answer: I asked Burnside 's advice on topics of group theory which would be worth investigation and received a postcard in reply containing valuable suggestions as to worth-while problems.
did someone email you a f06 file and you're not sure how to open it? maybe you have found a f06 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 f06 file related error message.

How would the previous sentence be correctly capitalized?
Answer: Did someone email you a F06 file and you're not sure how to open it? Maybe you have found a F06 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 F06 file related error message.
this equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

How would the previous sentence be correctly capitalized?
Answer: This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
berlin 2012 (6'th day, final chase)

How would the previous sentence be correctly capitalized?
Answer: Berlin 2012 (6'th day, final chase)