test
node1
GO:0006807
nitrogen compound
metabolic process
node2
GO:2001057
reactive nitrogen
species metabolic
process
node1->node2
node13
GO:0042126
nitrate metabolic
process
node2->node13
node3
GO:0044281
small molecule
metabolic process
node4
GO:0006082
organic acid
metabolic process
node3->node4
node14
GO:0043436
oxoacid metabolic
process
node4->node14
node5
GO:0009987
cellular process
node6
GO:0044237
cellular metabolic
process
node5->node6
node6->node4
node7
GO:0008152
metabolic process
node7->node1
node7->node3
node7->node6
node8
GO:0071704
organic substance
metabolic process
node7->node8
node8->node4
node9
BFO:0000015
process
node10
GO:0008150
biological_process
node9->node10
node10->node5
node10->node7
node11
BFO:0000003
occurrent
node11->node9
node11->node11
node12
BFO:0000001
entity
node12->node11
node14->node13