user: ### NOW ANSWER:
Question: What is the number of the Tax Supervising and Conservation Bill?
Columns: ['meas. num', 'passed', 'YES votes', 'NO votes', '% YES', 'Const. Amd.?', 'type', 'description']
Types: ['real', 'text', 'real', 'real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'YES', 189321.0, 124160.0, '60.39%', 'Yes', 'LEG', 'Taxpayer Voting Qualification Amendment']
SQL:

assistant: SELECT MIN("meas. num") FROM "Table" WHERE "description" = 'Tax Supervising and Conservation Bill';