test
node1
GO:0009605
response to external
stimulus
node2
GO:0009991
response to
extracellular
stimulus
node1->node2
node3
GO:0071496
cellular response to
external stimulus
node1->node3
node6
GO:0031668
cellular response to
extracellular
stimulus
node2->node6
node3->node6
node4
GO:0009987
cellular process
node7
GO:0007154
cell communication
node4->node7
node5
GO:0051716
cellular response to
stimulus
node4->node5
node5->node6
node7->node6
node8
BFO:0000003
occurrent
node8->node8
node11
BFO:0000015
process
node8->node11
node9
GO:0050896
response to stimulus
node9->node1
node9->node5
node10
GO:0008150
biological_process
node10->node4
node10->node9
node11->node10
node12
BFO:0000001
entity
node12->node8