test
node1
GO:0008150
biological_process
node2
GO:0008152
metabolic process
node1->node2
node9
GO:0065007
biological regulation
node1->node9
node12
GO:0009987
cellular process
node1->node12
node7
GO:0071704
organic substance
metabolic process
node2->node7
node13
GO:0044237
cellular metabolic
process
node2->node13
node16
GO:0006807
nitrogen compound
metabolic process
node2->node16
node3
BFO:0000001
entity
node4
BFO:0000003
occurrent
node3->node4
node4->node4
node14
BFO:0000015
process
node4->node14
node5
GO:1901564
organonitrogen
compound metabolic
process
node6
GO:0008291
acetylcholine
metabolic process
node5->node6
node7->node5
node8
GO:1900619
acetate ester
metabolic process
node7->node8
node8->node6
node15
GO:0065008
regulation of
biological quality
node9->node15
node10
GO:0001505
regulation of
neurotransmitter
levels
node11
GO:0042133
neurotransmitter
metabolic process
node10->node11
node11->node6
node12->node13
node13->node11
node14->node1
node15->node10
node16->node5