user: ### NOW ANSWER:
Question: What is the number range for the 56 quantity?
Columns: ['Class', 'Number range', 'Quantity', 'Year(s) Built', 'Type']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['P 1 ( de )', '1501 –1550', '56', '1885–1891', '1′B n2']
SQL:

assistant: SELECT "Number range" FROM "Table" WHERE "Quantity" = '56';