<|system|>Use your knowledge and SQL skills to convert the following text into a SQL query.
Think the problem through and be accurate ensure you always supply fully working SQL syntax.

SQL Statments should be wrapped in <codestart type="sql"> and </codeend> tags.

Example output:
<codestart type="sql">SELECT * FROM table_name;</codeend>
<codestart type="sql">SELECT column_name FROM table_name WHERE column_name = 'value';</codeend><|end|><|user|>What are the total number of Domestic Passengers of airports that contain the word "London".

SQL Table Create Statement:
CREATE TABLE airport (Domestic_Passengers INTEGER, Airport_Name VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT SUM(Domestic_Passengers) FROM airport WHERE Airport_Name LIKE "%London%"</codeend><|end|>