[EMBOSS] EMBOSS database queries

[Michael Thon]

I am setting up a database from Genbank formatted files.  I understand  
how to index the db and configure the emboss.default file but I don't  
know how to construct the queries.  queries for sequence IDs are  
pretty simple, i.e. with a USA of the format "dbname:id".  But, how to  
I create a query for the other fields, such as org and key?  Also, do  
these fields support wildcards or substring matches or other fancy  
stuff?
cheers
Mike