Database: conference
Question: What are the names and locations of the universities that did not have any staff participating in any conferences in 2004?
SQL:
SELECT T1.Institution_Name ,  T1.location FROM institution AS T1 JOIN staff AS T2 ON T1.institution_id  =  T2.institution_id WHERE T2.staff_id NOT IN (SELECT T4.staff_id FROM Conference AS T3 JOIN Conference_participation AS T4 ON T3.conference_id  =  T4.conference_id WHERE T3.year  =  2004)