Lightroom keywords

 - Type
  - HDR
  - Pano
  - Focus Stack
  - Macro
  - Long-exposure
  - Black and White

 - Subject
  - Abstract
     - Smoke
     - Oil Drops
  - Animals
     - Pets
	- Milly
	- Sasha
    - Architecture
      - Church / Cathedral
   - Portrait
    - Sky
       - Day
       - Night
 - Location [much travelled users may want continents as top level]
   - Wales
      - Cardiff
         - Barrage
            - Roath Park
    - England
     - Leeds
          - Town Hall
	   - London
	      - Koko

 - People
	 - Family
		 - Mam
		 - Dad
	 - Friends
		 - Joe Bloggs
 - Primary Colour
	- Red
	- Green
	- Blue