test
node1
BFO:0000015
process
node2
GO:0008150
biological_process
node1->node2
node3
GO:0008152
metabolic process
node2->node3
node4
GO:0071704
organic substance
metabolic process
node3->node4
node7
GO:1901615
organic hydroxy
compound metabolic
process
node4->node7
node5
BFO:0000003
occurrent
node5->node1
node5->node5
node6
BFO:0000001
entity
node6->node5