ค้นหาชื่อคณะที่เล่นพายเรือแคนูหรือพายเรือคายัค ไม่จำเป็นต้องใช้ทุกโต๊ะ
Find the first names of the faculty members who are playing Canoeing or Kayaking.It is not neccessary to use all the tables.
 faculty_participates_in:  facid [ number]  actid [ number] 
SELECT DISTINCT T1.lname FROM faculty AS T1 JOIN faculty_participates_in AS T2 ON T1.facid = T2.facid JOIN activity AS T3 ON T2.actid = T2.actid WHERE T3.activity_name = 'Canoeing' OR T3.activity_name = 'Kayaking'