Capital Passages and a semi-colon

Hello Again,

ROVER FINALLY HOME; HE WAS SOAKING WET!

Does the semi-colon make this two separate passages?

I'm looking at the example on pages 83-84 of UEB Rules.

"... at 11:00 ..AM"--...MARKAM ECONOMIST AND SUN..    I understand the use of 2 cap. indicators, although because it's one

symbols-sequence, it's confusing.

The instructions on page 83 say "A capitalized letter or letters-sequence placed adjacent to the beginning or end of a capitalized passage is not necessarily considered to be part of the passage, especially if it is separated from the passage by a space or punctuation."

Those are very vague instructions.   "WHAT IS HAPPENING? WHAT IS GOING ON?   is this one cap. passage, or two, as defined by the above instructions? Can you please explain the "...space or punctuation" instructions?

Thank you,

Candace Richardson