What countries are visited in the episode presented by Brian B. Thompson?
CREATE TABLE table_15211468_1 (countries_visited VARCHAR, presenter VARCHAR)
SELECT countries_visited FROM table_15211468_1 WHERE presenter = "Brian B. Thompson"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15211468_1 (countries_visited VARCHAR, presenter VARCHAR) Question: What countries are visited in the episode presented by Brian B. Thompson? [/INST] SELECT countries_visited FROM table_15211468_1 WHERE presenter = "Brian B. Thompson" </s>