user: Question: What's the 1861 had 1991 in 1881 and a Year of Year?
Columns: ['Year', '1851', '1861', '1871', '1881']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Year', '1851', '1861', '1871', '1881']
SQL:

assistant: SELECT "1861" FROM "Table" WHERE "Year" = 'Year' AND "1881" = '1991';