Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the sum of 1872(s), when 1866 is greater than 856, when 1861 is greater than 1906, and when 1876 is greater than 1990?

### Inputs:
table_name: table, columns: ['1861', '1866', '1872', '1876', '1881', '1886', '1891']

### Response:
SELECT SUM 1872 FROM table WHERE 1866 > 856 AND 1861 > 1906 AND 1876 > 1990