test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node5
BFO:0000015
process
node2->node5
node3
GO:0008150
biological_process
node4
GO:0008152
metabolic process
node3->node4
node8
GO:0065007
biological regulation
node3->node8
node9
GO:0042445
hormone metabolic
process
node4->node9
node5->node3
node6
GO:0065008
regulation of
biological quality
node7
GO:0010817
regulation of hormone
levels
node6->node7
node7->node9
node8->node6