a, An example of a complex structural variant (CSV) graph where its graph path is interpreted as S1+S3-S3-S4+. b, Examples of isomorphic graphs representing two different CSV events. c, SVision detected CSV classified as local target site duplication. d, SVision detected CSV classified as tandem duplication. Though events of structure depicted by (c) and (d) were computed as complex events, they were considered as simple events from the biological perspective.