test
node1
GO:0060359
response to ammonium
ion
node2
GO:0071242
cellular response to
ammonium ion
node1->node2
node3
GO:1901698
response to nitrogen
compound
node3->node1
node7
GO:1901699
cellular response to
nitrogen compound
node3->node7
node4
GO:0010035
response to inorganic
substance
node4->node1
node5
GO:0051716
cellular response to
stimulus
node6
GO:0070887
cellular response to
chemical stimulus
node5->node6
node6->node7
node7->node2
node8
GO:0009987
cellular process
node8->node5
node9
BFO:0000015
process
node10
GO:0008150
biological_process
node9->node10
node10->node8
node14
GO:0050896
response to stimulus
node10->node14
node11
GO:0042221
response to chemical
node11->node3
node11->node4
node11->node6
node12
BFO:0000001
entity
node13
BFO:0000003
occurrent
node12->node13
node13->node9
node13->node13
node14->node5
node14->node11