user: Question: What's the season number of the episode with series number US6?
Columns: ['No. in series', 'No. in season', 'Family/families', 'Location(s)', 'Original air date']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['US1', 1.0, 'The Jeans Family', 'Denver, CO', '1January2005']
SQL:

assistant: SELECT "No. in season" FROM "Table" WHERE "No. in series" = 'US6';