Please capitalize where necessary: in denmark there was significant interest in japan at the close of the 19th century.
A: In Denmark there was significant interest in Japan at the close of the 19th century.
Q: all models can accommodate an extra seat. we also have some 15.5 feet pelican canoes in polyethylene. those are the only ones we still rent out downstream of högsby.

A: All models can accommodate an extra seat. We also have some 15.5 feet Pelican canoes in polyethylene. Those are the only ones we still rent out downstream of Högsby.
Q: if you intend to install debian from the downloaded live image, be sure to have a look at the detailed information about the installation process.
A: If you intend to install Debian from the downloaded live image, be sure to have a look at the detailed information about the installation process.
Problem: tetranema flowers very easily, and keeps producing new stalks with many flowers.
Can you repeat this sentence, but capitalize it?
Answer: Tetranema flowers very easily, and keeps producing new stalks with many flowers.
Text: room facilities: cable channels, fax, hairdryer, iron, radio, refrigerator, safety deposit box, satellite channels, tv

Correct capitalization: Room facilities: Cable Channels, Fax, Hairdryer, Iron, Radio, Refrigerator, Safety Deposit Box, Satellite Channels, TV
Text: in the years thereafter, we completely renovated the entire hotel. now it's a lovely 3 star hotel with a private garden.

Correct capitalization:
In the years thereafter, we completely renovated the entire hotel. Now it's a lovely 3 star hotel with a private garden.