it offers different incline and decline angles as well as flat and military.

How would the previous sentence be correctly capitalized?
Answer: It offers different incline and decline angles as well as flat and military.
the category which he will be competing is ornamental/celtic.

How would the previous sentence be correctly capitalized?
Answer: The category which he will be competing is Ornamental/Celtic.
who doesn't know lurpak butter or the statue of the lur-blowers in city hall square in copenhagen? lurs have been used in political contexts, advertising and art.

How would the previous sentence be correctly capitalized?
Answer: Who doesn't know Lurpak butter or the statue of the lur-blowers in City Hall Square in Copenhagen? Lurs have been used in political contexts, advertising and art.
before you can open a wbe file, you'll need to figure out what kind of file the wbe file extension refers to.

How would the previous sentence be correctly capitalized?
Answer: Before you can open a WBE file, you'll need to figure out what kind of file the WBE file extension refers to.