user: Question: Name the broadcast network for Chiba Prefecture
Columns: ['Broadcast scope', 'Broadcast network', 'Broadcast term', 'Broadcast day and timings (in JST )', 'Broadcast format']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Chiba Prefecture', 'Chiba TV', 'January 11, 2009-', 'Sundays 24:00-24:30', 'UHF']
SQL:

assistant: SELECT "Broadcast network" FROM "Table" WHERE "Broadcast scope" = 'Chiba Prefecture';