test
node1
GO:0070482
response to oxygen
levels
node2
GO:0036293
response to decreased
oxygen levels
node1->node2
node3
GO:0034059
response to anoxia
node2->node3
node4
BFO:0000015
process
node5
GO:0008150
biological_process
node4->node5
node6
GO:0050896
response to stimulus
node5->node6
node9
GO:0006950
response to stress
node6->node9
node10
GO:0009628
response to abiotic
stimulus
node6->node10
node7
BFO:0000001
entity
node8
BFO:0000003
occurrent
node7->node8
node8->node4
node8->node8
node9->node3
node10->node1