<|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|>I want to know the highest heat rank for overall rank of t63 and time less than 25.47

SQL Table Create Statement:
CREATE TABLE table_name_88 (heat_rank INTEGER, overall_rank VARCHAR, time VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT MAX(heat_rank) FROM table_name_88 WHERE overall_rank = "t63" AND time < 25.47</codeend><|end|>