Display two queries and include a 'Reason' column.

I'd like to combine the results of two query expressions into one query table.(MsAccess) I don't want to use a UNION, since I need the database to be edited from the resultant query. So far this much I have no problem doing. The problem is that I want to include a column to indicate if each row is being included because of original query 1 expression or the original query 2 expression.