&id002 !!java.util.LinkedHashMap ? !!org.yaml.snakeyaml.recursive.generics.HumanGen2 bankAccountOwner: &id001 !!org.yaml.snakeyaml.recursive.generics.HumanGen2 bankAccountOwner: *id001 birthPlace: Leningrad birthday: 1970-01-12T13:46:40Z children: *id002 father: null mother: null name: Father partner: &id003 !!org.yaml.snakeyaml.recursive.generics.HumanGen2 bankAccountOwner: *id001 birthPlace: Saint-Petersburg birthday: 1973-03-03T09:46:40Z children: *id002 father: null mother: null name: Mother partner: *id001 birthPlace: Munich birthday: 1979-10-28T23:06:40Z children: !!java.util.LinkedHashMap {} father: *id001 mother: *id003 name: Son partner: null : This is My Son ? !!org.yaml.snakeyaml.recursive.generics.HumanGen2 bankAccountOwner: *id001 birthPlace: New York birthday: 1983-04-24T02:40:00Z children: !!java.util.LinkedHashMap {} father: *id001 mother: *id003 name: Daughter partner: null : This Is My Daughter