test
node1
GO:0008152
metabolic process
node2
GO:0044237
cellular metabolic
process
node1->node2
node3
GO:0072593
reactive oxygen
species metabolic
process
node2->node3
node4
GO:0006801
superoxide metabolic
process
node3->node4
node5
GO:0009987
cellular process
node5->node2
node6
BFO:0000003
occurrent
node6->node6
node7
BFO:0000015
process
node6->node7
node8
GO:0008150
biological_process
node7->node8
node8->node1
node8->node5
node9
BFO:0000001
entity
node9->node6