Before revision:  At the cost of slightly changing the output graph class these bikernels can be turned into into kernels. Finally, we demonstrate how these constructions can be combined to create 'multikernels', meaning graphs who represent kernels for multiple problems at once.
After revision:  At the cost of slightly changing the output graph class these bikernels can be turned into kernels. We further demonstrate how these constructions can be combined to create 'multikernels', meaning graphs who represent kernels for multiple problems at once.