test
node1
GO:0006812
monoatomic cation
transport
node2
GO:0098655
monoatomic cation
transmembrane
transport
node1->node2
node14
GO:1902600
proton transmembrane
transport
node2->node14
node3
GO:0006810
transport
node4
GO:0006811
monoatomic ion
transport
node3->node4
node9
GO:0055085
transmembrane
transport
node3->node9
node4->node1
node10
GO:0034220
monoatomic ion
transmembrane
transport
node4->node10
node5
BFO:0000003
occurrent
node5->node5
node6
BFO:0000015
process
node5->node6
node7
GO:0008150
biological_process
node6->node7
node8
GO:0051179
localization
node7->node8
node13
GO:0009987
cellular process
node7->node13
node15
GO:0051234
establishment of
localization
node8->node15
node9->node10
node11
GO:0098660
inorganic ion
transmembrane
transport
node9->node11
node10->node2
node12
GO:0098662
inorganic cation
transmembrane
transport
node11->node12
node12->node14
node13->node9
node15->node3
node16
BFO:0000001
entity
node16->node5