--- victoria: - label: married source: victoria target: james - label: is source: victoria target: female margaret: - label: is source: margaret target: female christine: - label: is source: christine target: female charles: - label: is source: charles target: male james and victoria: - label: had source: james and victoria target: charlotte victoria and james: - label: had source: victoria and james target: colin - label: had source: victoria and james target: charlotte christopher and penelope: - label: had source: christopher and penelope target: arthur - label: had source: christopher and penelope target: victoria penelope: - label: is source: penelope target: female female: [] jennifer: - label: married source: jennifer target: charles - label: is source: jennifer target: female charlotte: - label: is source: charlotte target: female christopher: - label: married source: christopher target: penelope - label: is source: christopher target: male male: [] arthur: - label: married source: arthur target: margaret - label: is source: arthur target: male andrew: - label: married source: andrew target: christine - label: is source: andrew target: male andrew and christine: - label: had source: andrew and christine target: james christine and andrew: - label: had source: christine and andrew target: jennifer james: - label: is source: james target: male colin: - label: is source: colin target: male