CREATE TABLE building (building_id CLOB, name CLOB, street_address CLOB, years_as_tallest CLOB, height_feet NUMBER, floors NUMBER)
CREATE TABLE protein (common_name CLOB, protein_name CLOB, divergence_from_human_lineage NUMBER, accession_number CLOB, sequence_length NUMBER, sequence_identity_to_human_protein CLOB, institution_id CLOB)
CREATE TABLE institution (institution_id CLOB, institution CLOB, location CLOB, founded NUMBER, type CLOB, enrollment NUMBER, team CLOB, primary_conference CLOB, building_id CLOB)

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" "T1" JOIN "protein" "T2" ON "T1"."institution_id" = "T2"."institution_id" JOIN "building" "T3" ON "T1"."building_id" = "T3"."building_id" AND "T3"."floors" >= 20