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

### Instruction:
When the Nokia corporation had an accreditation level of joyn, what was the accreditation type?

### Inputs:
table_name: table, columns: ['Company name', 'Hardware Model', 'Accreditation type', 'Accreditation level', 'Date']

### Response:
SELECT Accreditation type FROM table WHERE Accreditation level = joyn AND Company name = nokia corporation