<|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|>Which elevation groundstation has a capacity in persons/hour larger than 820, and a Name or route of lager 1, and a slope length smaller than 336?

SQL Table Create Statement:
CREATE TABLE table_name_68 (elevation_groundstation INTEGER, slope_length VARCHAR, capacity_in_persons_hour VARCHAR, name_or_route VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT AVG(elevation_groundstation) FROM table_name_68 WHERE capacity_in_persons_hour > 820 AND name_or_route = "lager 1" AND slope_length < 336</codeend><|end|>