What was the surface that was played on during the week of March 16?
CREATE TABLE table_name_71 (surface VARCHAR, week VARCHAR)
SELECT surface FROM table_name_71 WHERE week = "march 16"
### Context: CREATE TABLE table_name_71 (surface VARCHAR, week VARCHAR) ### Question: What was the surface that was played on during the week of March 16? ### Answer: SELECT surface FROM table_name_71 WHERE week = "march 16"