def instance_filter_exists(self, instance, network_info):
        raise NotImplementedError()
Find the copula+'van' relation ('of') in the Dutch tagged training corpus
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/virt/libvirt/firewall.py/FirewallDriver.instance_filter_exists--crossover with--dataset/ETHPy150Open nltk/nltk/nltk/sem/relextract.py/conllned