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

### Instruction:
What country's capital is buenos aires?

### Inputs:
table_name: table, columns: ['Country or territory with flag', 'Area (km²) (per sqmi)', 'Population (July 2009 est.)', 'Population density per km²', 'Capital']

### Response:
SELECT Country or territory with flag FROM table WHERE Capital = Buenos Aires