test
node1
GO:0065007
biological regulation
node2
GO:0065008
regulation of
biological quality
node1->node2
node3
GO:0001505
regulation of
neurotransmitter
levels
node2->node3
node4
BFO:0000001
entity
node5
BFO:0000003
occurrent
node4->node5
node5->node5
node6
BFO:0000015
process
node5->node6
node7
GO:0008150
biological_process
node6->node7
node7->node1