test
node1
GO:0008150
biological_process
node2
GO:0008152
metabolic process
node1->node2
node3
GO:0071704
organic substance
metabolic process
node2->node3
node4
GO:0120254
olefinic compound
metabolic process
node3->node4
node7
GO:0120252
hydrocarbon metabolic
process
node3->node7
node5
GO:1900673
olefin metabolic
process
node4->node5
node6
BFO:0000003
occurrent
node6->node6
node9
BFO:0000015
process
node6->node9
node7->node5
node8
BFO:0000001
entity
node8->node6
node9->node1