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

### Instruction:
What is the state of the senator with a November 14, 1972 date of successor's formal installation?

### Inputs:
table_name: table, columns: ['State (class)', 'Vacator', 'Reason for change', 'Successor', "Date of successor's formal installation"]

### Response:
SELECT State (class) FROM table WHERE Date of successor's formal installation = november 14, 1972