a low-wear feed impeller and a robust housing guarantee a long life and problem-free operation.

How would the previous sentence be correctly capitalized?
Answer: A low-wear feed impeller and a robust housing guarantee a long life and problem-free operation.
39615818 clothing and textile industries, amu industry

How would the previous sentence be correctly capitalized?
Answer: 39615818 Clothing and Textile industries, AMU industry
with the help of a lot of people who have donated their time and resources, dalnet has become the largest irc network with services today.

How would the previous sentence be correctly capitalized?
Answer: With the help of a lot of people who have donated their time and resources, DALnet has become the largest IRC network with Services today.
the largest risk group is nowadays young people who travel to southern europe on vacation, especially girls.

How would the previous sentence be correctly capitalized?
Answer: The largest risk group is nowadays young people who travel to southern Europe on vacation, especially girls.