Indicar todos os nomes das actividades e o número de professores envolvidos em cada actividade.
CREATE TABLE Faculty_participates_in (actID VARCHAR); CREATE TABLE Activity (activity_name VARCHAR, actID VARCHAR)
SELECT T1.activity_name, COUNT(*) FROM Activity AS T1 JOIN Faculty_participates_in AS T2 ON T1.actID = T2.actID GROUP BY T1.actID