test
node1
BFO:0000003
occurrent
node1->node1
node7
BFO:0000015
process
node1->node7
node2
GO:0051179
localization
node3
GO:0051234
establishment of
localization
node2->node3
node4
GO:0006810
transport
node3->node4
node5
GO:0006811
monoatomic ion
transport
node4->node5
node9
GO:0006812
monoatomic cation
transport
node5->node9
node6
BFO:0000001
entity
node6->node1
node8
GO:0008150
biological_process
node7->node8
node8->node2