http://tools.wmflabs.org/wikidata-terminator/index.php?list&lang=ca&mode=tx shows mostly 

* Categories of years e.g. [[Category:1923]]

* Categories of born in... 

* Categories of died in...

* Country data categories

All these categories exist in ca.wiki, but there are hundreds of them. Is there a bot that, given the corresponding translations, could go fix those?