test
node1
GO:0050896
response to stimulus
node2
GO:0006950
response to stress
node1->node2
node4
GO:0051716
cellular response to
stimulus
node1->node4
node8
GO:0033554
cellular response to
stress
node2->node8
node3
GO:0009987
cellular process
node3->node4
node4->node8
node5
BFO:0000003
occurrent
node5->node5
node6
BFO:0000015
process
node5->node6
node9
GO:0008150
biological_process
node6->node9
node7
BFO:0000001
entity
node7->node5
node9->node1
node9->node3