Where the length is 91', what is the year built?
CREATE TABLE table_name_38 (year_built VARCHAR, length VARCHAR)
SELECT year_built FROM table_name_38 WHERE length = "91'"
### Context: CREATE TABLE table_name_38 (year_built VARCHAR, length VARCHAR) ### Question: Where the length is 91', what is the year built? ### Answer: SELECT year_built FROM table_name_38 WHERE length = "91'"