Resources:
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As well as text searching, it can be helpful to use filters on the spreadsheet to see if there are some similar concepts to suggest a map - or to be as sure as you can that there is nothing suitable to map to
I suggest that you download the spreadsheet - I haven't managed to find a way to work with it directly in Confluence - but I think that's me! Then, please upload your version with your mappings onto this page - unless any of you who are familiar with Confluence can show us a better process