In Oracle, I have a database CLOB field I need to extract data from.
The specification looks like:

[<br /><b>A:</b><br />Text A which does not contain HTML[<br />]]
[<br /><b>B:</b><br />Text B which does not contain HTML[<br />]]
[<br /><b>C:</b><br />Text C which does not contain HTML[<br />]]

Any of the three may be missing, but if present, they will always be in the order A, B, C. There is not always a carriage return separating the fields.
I need:

1. To be able to recognize if the field is in the right format: I think I'm ok as long as I check that the field starts with <br /><b> , but a better regex would be awesome.
2. To be able to extract A, B, and/or C sans the "header".
   Examples:
   | field | Valid | A | B | C |
   | ------------ | ------------ | ------------ | ------------ | ------------ |
   | <br /><b>A:</b><br />Foo<br /> <br /><b>B:</b><br />Bar<br /> <br /><b>C:</b><br />Baz<br /> | Yes | Foo | Bar | Baz |
   | <br /><b>B:</b><br />Foo | Yes | Foo | | |
   | <br /><b>B:</b><br />Bar<br /> | Yes | | Bar | |
   | <br /><b>A:</b><br />Foo <br /><b>B:</b><br />Bar<br /> | Yes | Foo | Bar | |
   | <br /><b>A:</b><br />Foo<br /> <br /><b>C:</b><br />Baz<br /> | Yes | Foo | | Baz |
   Are there any regex gurus who might be able to tell me if/how I could extract A, B, and/or C?
   Thanks!
   Edit: I've added a SQLFiddle at http://sqlfiddle.com/#!4/9aae2/14/0