SELECT address_line_1 FROM Course_Authors_and_Tutors WHERE personal_name	 =  "Cathrine"
What are the addresses of the course authors or tutors with personal name "Cathrine"
SELECT address_line_1 FROM Course_Authors_and_Tutors WHERE personal_name = `` Cathrine ''
select address_line_1 from course_authors_and_tutors where personal_name = value
What are the addresses of the course authors or tutors with personal name `` Cathrine ''