test
node1
GO:0008150
biological_process
node2
GO:0051179
localization
node1->node2
node15
GO:0032501
multicellular
organismal process
node1->node15
node14
GO:0051234
establishment of
localization
node2->node14
node3
BFO:0000003
occurrent
node3->node3
node6
BFO:0000015
process
node3->node6
node4
GO:0006814
sodium ion transport
node5
GO:0003096
renal sodium ion
transport
node4->node5
node6->node1
node7
GO:0003008
system process
node8
GO:0003014
renal system process
node7->node8
node8->node5
node9
GO:0006811
monoatomic ion
transport
node10
GO:0006812
monoatomic cation
transport
node9->node10
node13
GO:0030001
metal ion transport
node10->node13
node11
BFO:0000001
entity
node11->node3
node12
GO:0006810
transport
node12->node9
node13->node4
node14->node12
node15->node7