Complex work item queries in TFS

I recently wanted to create a work item query that showed all my work items that are either not closed or I had modified recently. This query provides a useful list of work items for associating with a check-in.

I wanted the query to show:
AssignedTo = @Me AND (State <> Closed OR (State = Closed AND ChangedDate > @Today - 7))

To do this, I needed to use multiple levels of the Group Clauses feature, which is available by selecting more than one clause and right clicking on one of the selected clauses.

The result is below: