test
node1
GO:0050896
response to stimulus
node2
GO:0006950
response to stress
node1->node2
node7
GO:0006991
response to sterol
depletion
node2->node7
node3
GO:0008150
biological_process
node3->node1
node4
BFO:0000001
entity
node5
BFO:0000003
occurrent
node4->node5
node5->node5
node6
BFO:0000015
process
node5->node6
node6->node3