What is the sum of Tujia population with the Zhangjiajie prefecture in Sangzhi county?
CREATE TABLE table_name_20 (tujia_population INTEGER, prefecture VARCHAR, county VARCHAR)
SELECT SUM(tujia_population) FROM table_name_20 WHERE prefecture = "zhangjiajie" AND county = "sangzhi"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_20 (tujia_population INTEGER, prefecture VARCHAR, county VARCHAR) Question: What is the sum of Tujia population with the Zhangjiajie prefecture in Sangzhi county? [/INST] SELECT SUM(tujia_population) FROM table_name_20 WHERE prefecture = "zhangjiajie" AND county = "sangzhi" </s>