Device types

Can a device fall int to types of device?
Can a device be of type CL_DEVICE_TYPE_ACCELERATOR and CL_DEVICE_GPU?

In table 4.3 you can find the following:

The OpenCL device type. Currently supported values are:
CL_DEVICE_TYPE_CPU, CL_DEVICE_TYPE_GPU, CL_DEVICE_TYPE_ACCELERATOR, CL_DEVICE_TYPE_DEFAULT or a combination of the above.