test
node1
GO:0008150
biological_process
node2
GO:0050896
response to stimulus
node1->node2
node5
GO:0009628
response to abiotic
stimulus
node2->node5
node3
BFO:0000003
occurrent
node3->node3
node4
BFO:0000015
process
node3->node4
node4->node1
node6
GO:0009314
response to radiation
node5->node6
node8
GO:0010212
response to ionizing
radiation
node6->node8
node7
BFO:0000001
entity
node7->node3
node9
GO:0010332
response to gamma
radiation
node8->node9