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

### Instruction:
Who sponsored the bill introduced on June 9, 2011?

### Inputs:
table_name: table, columns: ['Congress', 'Bill number(s)', 'Date introduced', 'Sponsor(s)', '# of cosponsors', 'Latest status']

### Response:
SELECT Sponsor(s) FROM table WHERE Date introduced = june 9, 2011