What is the number of interregnum for duration 3 months, 6 days?
CREATE TABLE table_11071897_1 (interregnum_ended VARCHAR, duration VARCHAR)
SELECT COUNT(interregnum_ended) FROM table_11071897_1 WHERE duration = "3 months, 6 days"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_11071897_1 (interregnum_ended VARCHAR, duration VARCHAR) Question: What is the number of interregnum for duration 3 months, 6 days? [/INST] SELECT COUNT(interregnum_ended) FROM table_11071897_1 WHERE duration = "3 months, 6 days" </s>