SELECT count(*) FROM institution AS T1 JOIN protein AS T2 ON T1.institution_id  =  T2.institution_id JOIN building AS T3 ON T3.building_id  =  T1.building_id WHERE T3.floors  >=  20
How many proteins are associated with an institution in a building with at least 20 floors?
SELECT count ( * ) FROM institution AS T1 JOIN protein AS T2 ON T1.institution_id = T2.institution_id JOIN building AS T3 ON T3.building_id = T1.building_id WHERE T3.floors > = 20
select count ( * ) from institution as t1 join protein as t2 on t1 . institution_id = t2 . institution_id join building as t3 on t3 . building_id = t1 . building_id where t3 . floors > = value
How many proteins are associated with an institution in a building with at least 20 floors ?