test
node1
GO:0008150
biological_process
node2
GO:0051179
localization
node1->node2
node3
GO:0051640
organelle
localization
node2->node3
node5
GO:0051648
vesicle localization
node3->node5
node4
BFO:0000003
occurrent
node4->node4
node6
BFO:0000015
process
node4->node6
node8
GO:0097479
synaptic vesicle
localization
node5->node8
node6->node1
node7
BFO:0000001
entity
node7->node4