test
node1
GO:0051234
establishment of
localization
node2
GO:0006810
transport
node1->node2
node3
GO:0071702
organic substance
transport
node2->node3
node4
GO:0015711
organic anion
transport
node3->node4
node5
BFO:0000001
entity
node6
BFO:0000003
occurrent
node5->node6
node6->node6
node9
BFO:0000015
process
node6->node9
node7
GO:0008150
biological_process
node8
GO:0051179
localization
node7->node8
node8->node1
node9->node7