test
node1
BFO:0000003
occurrent
node1->node1
node4
BFO:0000015
process
node1->node4
node2
GO:0006810
transport
node3
GO:0055085
transmembrane
transport
node2->node3
node10
GO:0098660
inorganic ion
transmembrane
transport
node3->node10
node5
GO:0008150
biological_process
node4->node5
node7
GO:0009987
cellular process
node5->node7
node9
GO:0051179
localization
node5->node9
node6
BFO:0000001
entity
node6->node1
node7->node3
node8
GO:0051234
establishment of
localization
node8->node2
node9->node8