Please capitalize where necessary: sailing association of north rhine-westphalia (sv nrw) held on 08.03.2012 das seminar "finance and taxation".
A: Sailing Association of North Rhine-Westphalia (SV NRW) held on 08.03.2012 das Seminar "Finance and Taxation".

Q: there were (and still are) three farm leased by king's yeomen and the private owners ground is 29 marks.

A: There were (and still are) three farm leased by King's yeomen and the private owners ground is 29 marks.

Q: a long time ago, this was an important stop on the famous silk road, and there has been plenty of space for trade and commerce ever since.
A: A long time ago, this was an important stop on the famous Silk Road, and there has been plenty of space for trade and commerce ever since.

Problem: all of a sudden i had only taken maybe just over 200 steps the flashlight is going off and on. i am thinking this is not good.
Can you repeat this sentence, but capitalize it?
Answer: All of a sudden I had only taken maybe just over 200 steps the flashlight is going off and on. I am thinking this is not good.

Text: unique front to back airflow design and compact size takes up less space in your yard than other whole-house heat pump

Correct capitalization: Unique front to back airflow design and compact size takes up less space in your yard than other whole-house heat pump

Problem: system audio offers you a 7 year factory warranty, commencing from the date of purchase on your receipt.
Can you repeat this sentence, but capitalize it?
Answer:
System Audio offers you a 7 year factory warranty, commencing from the date of purchase on your receipt.