Thread:Semantic-mediawiki.org:Community portal/"Crosstab" to summarize links between pages in categories?

When choosing SMW as knowledgebase, I was expecting, that I could summarize links between pages in tables to find inconsistencies. However, I seem to not be able to find a way to do this. Maybe I am missing something?

Here is what I would like to do: 1) Query for pages in two separate categories 2) Find all links (perhaps filter them for attribute) between the pages of these two categories 3) Display these links in a table (Crosstab), where pages of one category is on one axis and pages of the other category are on the other axis. Cells display the links / attributes linking these pages

Is there an extension, to do something like this?

Best Regards,

Ruedi