SELECT T1.organisation_type FROM Organisations AS T1 JOIN Research_Staff AS T2 ON T1.organisation_id  =  T2.employer_organisation_id GROUP BY T1.organisation_type ORDER BY count(*) DESC LIMIT 1
Which organisation type hires most research staff?
SELECT T1.organisation_type FROM Organisations AS T1 JOIN Research_Staff AS T2 ON T1.organisation_id = T2.employer_organisation_id GROUP BY T1.organisation_type ORDER BY count ( * ) DESC LIMIT 1
select t1 . organisation_type from organisations as t1 join research_staff as t2 on t1 . organisation_id = t2 . employer_organisation_id group by t1 . organisation_type order by count ( * ) desc limit value
Which organisation type hires most research staff ?