I can't seem to find anything that describes what to do with relationship classes once they are built. Until now, all I can do is identify on the features in ArcMap, then click through the tree structure within the identify window in order to see the related records. That's fine, but what about the ability to query the related features/records? For instance, suppose you had a relationship class built for relating city blocks to the parcels within them. I'd like to build a query to show all parcels that are "related" to a particular city block. I just can't seem to find any guidance on doing these types of queries. Thanks in advance.