Show the names of all the activities.
select activity_name from activity
Show the names of those with faculty participation.
select t3.activity_name, t1.fname, t1.lname from faculty as t1 join faculty_participates_in as t2 on t1.facid = t2.facid join activity as t3 on t3.actid = t2.actid
What are those activities which Mark Giuliano participates in?
select t3.activity_name from faculty as t1 join faculty_participates_in as t2 on t1.facid = t2.facid join activity as t3 on t3.actid = t2.actid where t1.fname = "Mark" and t1.lname = "Giuliano"