user: Question: What is the largest district for delegate cheryl glenn, that she had taken after 2006?
Columns: ['District', 'Place of Birth', 'Delegate', 'Party', 'Took Office', 'Committee']
Types: ['real', 'text', 'text', 'text', 'real', 'text']
Sample row: [40.0, 'Baltimore City', 'Frank Conaway', 'Democratic', 2006.0, 'Judiciary']
SQL:

assistant: SELECT MAX("District") FROM "Table" WHERE "Delegate" = 'cheryl glenn' AND "Took Office" > 2006.0;