I see now, the variety of tags you want to be preserved when MM file is to be imported into PB, yes?
The export to Word was a success, it retained all icons and sorted out the tags but I am really not sure if this word to PB will work. Have you tried it? Even if the icons being pulled in by PB, MS Word layout is linear, hence you’ll end up with a first level series of “Thoughts” in PB. (I’d think so but cannot check it as I do not yet have a working PB installed). Hence I think you would need to build up the associations manually and that is depending on the original MM layout, can be more manual work than worth doing, yes?
How much data do you have in MM that you really wish to import into PB?
May I ask the reason as to what value do you foresee to gain by doing this import?
Here I am turning your question for help into an inquiry of my own as I am investigating the reasons why should I go down the same road. If I do however, I am unlikely to face your kind of problem since I use MM mainly for visual thinking and no longer use the maps to keep valuable data in it for long term use.
So, if anything we could have a discussion about the best use of MM and PB if you like.