test
node1
GO:0051606
detection of stimulus
node2
GO:0009593
detection of chemical
stimulus
node1->node2
node7
GO:0071703
detection of organic
substance
node2->node7
node3
GO:0008150
biological_process
node4
GO:0050896
response to stimulus
node3->node4
node4->node1
node5
GO:0042221
response to chemical
node4->node5
node5->node2
node8
GO:0010033
response to organic
substance
node5->node8
node6
BFO:0000015
process
node6->node3
node8->node7
node9
BFO:0000001
entity
node10
BFO:0000003
occurrent
node9->node10
node10->node6
node10->node10