user: Question: What is the Constituency Number when the Number of Electorates (2003) is more than 156910, and Reserved for SC?
Columns: ['Constituency number', 'Name', 'Reserved for ( SC / ST /None)', 'District', 'Number of electorates (2003)']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['9', 'Gohad', 'SC', 'Bhind', 152607.0]
SQL:

assistant: SELECT "Constituency number" FROM "Table" WHERE "Number of electorates (2003)" > 156910.0 AND "Reserved for ( SC / ST /None)" = 'SC';