CREATE TABLE activity (actid DECIMAL, activity_name TEXT)
CREATE TABLE participates_in (stuid DECIMAL, actid DECIMAL)
CREATE TABLE student (stuid DECIMAL, lname TEXT, fname TEXT, age DECIMAL, sex TEXT, major DECIMAL, advisor DECIMAL, city_code TEXT)
CREATE TABLE faculty (facid DECIMAL, lname TEXT, fname TEXT, rank TEXT, sex TEXT, phone DECIMAL, room TEXT, building TEXT)
CREATE TABLE faculty_participates_in (facid DECIMAL, actid DECIMAL)

Find the number of activities Mark Giuliano is involved in.
SELECT COUNT(*) FROM faculty AS T1 JOIN faculty_participates_in AS T2 ON T1.facid = T2.facid WHERE T1.fname = "Mark" AND T1.lname = "Giuliano"
SELECT COUNT(*) FROM "faculty" AS "T1" JOIN "faculty_participates_in" AS "T2" ON "T1"."facid" = "T2"."facid" WHERE "Giuliano" = "T1"."lname" AND "Mark" = "T1"."fname"