test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node5
GO:0008150
biological_process
node2->node5
node3
GO:0055078
sodium ion
homeostasis
node4
GO:0006883
intracellular sodium
ion homeostasis
node3->node4
node6
GO:0042592
homeostatic process
node5->node6
node8
GO:0048878
chemical homeostasis
node6->node8
node11
GO:0019725
cellular homeostasis
node6->node11
node7
GO:0055080
monoatomic cation
homeostasis
node7->node3
node10
GO:0030003
intracellular
monoatomic cation
homeostasis
node7->node10
node9
GO:0050801
monoatomic ion
homeostasis
node8->node9
node12
GO:0055082
intracellular
chemical homeostasis
node8->node12
node13
GO:0098771
inorganic ion
homeostasis
node8->node13
node9->node7
node14
GO:0006873
intracellular
monoatomic ion
homeostasis
node9->node14
node10->node4
node11->node12
node12->node14
node13->node3
node14->node10
node15
BFO:0000001
entity
node15->node1