# Edge + Group (i.e. subgraph). OK.
-> (cluster_1:[Solar system]->{arrowhead: diamond}[Earth]){bgcolor: cornflowerblue; label: Locale}
# Edge + Group (i.e. subgraph). OK.
-> (cluster_1:[Solar system]->{arrowhead: diamond}[Earth]){bgcolor: cornflowerblue; label: Locale}