what is the year built of  kyrkjebø?
CREATE TABLE table_name_20 (year_built INTEGER, sub_parish__sogn_ VARCHAR)
SELECT AVG(year_built) FROM table_name_20 WHERE sub_parish__sogn_ = "kyrkjebø"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_20 (year_built INTEGER, sub_parish__sogn_ VARCHAR) Question: what is the year built of  kyrkjebø? [/INST] SELECT AVG(year_built) FROM table_name_20 WHERE sub_parish__sogn_ = "kyrkjebø" </s>