test
node1
GO:0008152
metabolic process
node2
GO:0006807
nitrogen compound
metabolic process
node1->node2
node14
GO:0071704
organic substance
metabolic process
node1->node14
node15
GO:0044238
primary metabolic
process
node1->node15
node3
GO:1901564
organonitrogen
compound metabolic
process
node2->node3
node4
GO:0019538
protein metabolic
process
node3->node4
node7
GO:0036211
protein modification
process
node4->node7
node5
GO:0018193
peptidyl-amino acid
modification
node6
GO:0018202
peptidyl-histidine
modification
node5->node6
node7->node5
node8
BFO:0000003
occurrent
node8->node8
node9
BFO:0000015
process
node8->node9
node11
GO:0008150
biological_process
node9->node11
node10
BFO:0000001
entity
node10->node8
node11->node1
node12
GO:0043412
macromolecule
modification
node12->node7
node13
GO:0043170
macromolecule
metabolic process
node13->node4
node13->node12
node14->node3
node14->node13
node15->node4