test
node1
BFO:0000003
occurrent
node1->node1
node8
BFO:0000015
process
node1->node8
node2
GO:0048856
anatomical structure
development
node3
GO:0007275
multicellular
organism development
node2->node3
node5
GO:0009838
abscission
node3->node5
node4
GO:0032502
developmental process
node4->node2
node4->node5
node6
GO:0008150
biological_process
node6->node4
node7
GO:0032501
multicellular
organismal process
node6->node7
node7->node3
node8->node6
node9
BFO:0000001
entity
node9->node1