[{"id": "e1", "source": "node-greeting", "target": "node-ask-product"}, {"id": "e2", "source": "node-ask-product", "target": "node-ask-quantity"}, {"id": "e3", "source": "node-ask-quantity", "target": "node-ask-address"}, {"id": "e4", "source": "node-ask-address", "target": "node-ask-email"}, {"id": "e5", "source": "node-ask-email", "target": "node-processing"}, {"id": "e6", "source": "node-processing", "target": "node-submit-order"}, {"id": "e7", "source": "node-submit-order", "target": "node-confirmation"}, {"id": "e8", "source": "node-confirmation", "target": "node-end"}]