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

### Instruction:
What is the entry for the Australian sound that has a 17th century equivalent of ɐ?

### Inputs:
table_name: table, columns: ['Semi-closed initial unstressed vowels', '17th c.', 'American', 'Australian', 'Examples']

### Response:
SELECT Australian FROM table WHERE 17th c. = ɐ