Database: college_3
Question: What are the last names of faculty who are part of the computer science department?
SQL:
SELECT T2.Lname FROM DEPARTMENT AS T1 JOIN FACULTY AS T2 ON T1.DNO  =  T3.DNO JOIN MEMBER_OF AS T3 ON T2.FacID  =  T3.FacID WHERE T1.DName  =  "Computer Science"