test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node3
GO:0008150
biological_process
node2->node3
node7
GO:0008152
metabolic process
node3->node7
node4
GO:1901564
organonitrogen
compound metabolic
process
node5
GO:1901565
organonitrogen
compound catabolic
process
node4->node5
node6
GO:1901575
organic substance
catabolic process
node6->node5
node8
GO:0071704
organic substance
metabolic process
node7->node8
node9
GO:0006807
nitrogen compound
metabolic process
node7->node9
node11
GO:0009056
catabolic process
node7->node11
node8->node4
node8->node6
node9->node4
node10
BFO:0000001
entity
node10->node1
node11->node6