test
node1
GO:0009636
response to toxic
substance
node2
GO:0098754
detoxification
node1->node2
node3
GO:0008150
biological_process
node3->node2
node5
GO:0050896
response to stimulus
node3->node5
node4
GO:0042221
response to chemical
node4->node1
node5->node4
node6
BFO:0000015
process
node6->node3
node7
BFO:0000003
occurrent
node7->node6
node7->node7
node8
BFO:0000001
entity
node8->node7