<|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|>Name the guest 2 for colin murray 6 april

SQL Table Create Statement:
CREATE TABLE table_20466963_13 (guest_2 VARCHAR, presenter VARCHAR, date VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT COUNT(guest_2) FROM table_20466963_13 WHERE presenter = "Colin Murray" AND date = "6 April"</codeend><|end|>