test
node1
GO:0006825
copper ion transport
node2
GO:0035434
copper ion
transmembrane
transport
node1->node2
node3
GO:0008150
biological_process
node4
GO:0009987
cellular process
node3->node4
node9
GO:0051179
localization
node3->node9
node18
GO:0055085
transmembrane
transport
node4->node18
node5
GO:0006810
transport
node6
GO:0006811
monoatomic ion
transport
node5->node6
node5->node18
node7
GO:0006812
monoatomic cation
transport
node6->node7
node14
GO:0034220
monoatomic ion
transmembrane
transport
node6->node14
node8
GO:0030001
metal ion transport
node7->node8
node11
GO:0098655
monoatomic cation
transmembrane
transport
node7->node11
node13
GO:0000041
transition metal ion
transport
node8->node13
node10
GO:0051234
establishment of
localization
node9->node10
node10->node5
node11->node2
node12
GO:0098662
inorganic cation
transmembrane
transport
node12->node2
node13->node1
node14->node11
node15
GO:0098660
inorganic ion
transmembrane
transport
node15->node12
node16
BFO:0000003
occurrent
node16->node16
node17
BFO:0000015
process
node16->node17
node17->node3
node18->node14
node18->node15
node19
BFO:0000001
entity
node19->node16