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

### Instruction:
What is the BW 2013 ranking of Washington, D.C., which has an ARWU 2012 ranking greater than 51?

### Inputs:
table_name: table, columns: ['Location (State, City)', 'USN 2013', 'BW 2013', 'Forbes 2011', 'Ec 2013', 'FT 2011', 'AE 2011', 'CNN 2011', 'BI 2013', 'ARWU 2012']

### Response:
SELECT BW 2013 FROM table WHERE ARWU 2012 > 51 AND Location (State, City) = washington, d.c.