expert-system public under artificial-intelligence 240, knowledge-based-system 6 List Picture As a command %3 n0 expert-system n3 connectionist-expert-system n0->n3 n4 diagnostic-expert-system n0->n4 n5 frame-based-expert-system n0->n5 n6 rule-based-expert-system n0->n6 n1 artificial-intelligence n1->n0 n2 knowledge-based-system n2->n0