test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node3
BFO:0000015
process
node2->node3
node7
GO:0008150
biological_process
node3->node7
node4
GO:0008152
metabolic process
node5
GO:0071704
organic substance
metabolic process
node4->node5
node6
GO:0044237
cellular metabolic
process
node4->node6
node9
GO:0006807
nitrogen compound
metabolic process
node4->node9
node18
GO:0044238
primary metabolic
process
node4->node18
node16
GO:0043170
macromolecule
metabolic process
node5->node16
node17
GO:1901360
organic cyclic
compound metabolic
process
node5->node17
node10
GO:0034641
cellular nitrogen
compound metabolic
process
node6->node10
node14
GO:0046483
heterocycle metabolic
process
node6->node14
node15
GO:0006725
cellular aromatic
compound metabolic
process
node6->node15
node7->node4
node8
GO:0009987
cellular process
node7->node8
node8->node6
node9->node10
node13
GO:0006139
nucleobase-containin
compound metabolic
process
node10->node13
node11
GO:0090304
nucleic acid
metabolic process
node12
GO:0016070
RNA metabolic process
node11->node12
node13->node11
node14->node13
node15->node13
node16->node11
node17->node13
node18->node13