test
node1
GO:0051234
establishment of
localization
node2
GO:0006810
transport
node1->node2
node5
GO:0046903
secretion
node2->node5
node3
GO:0051179
localization
node3->node1
node4
GO:0008150
biological_process
node4->node3
node6
BFO:0000015
process
node6->node4
node7
BFO:0000003
occurrent
node7->node6
node8
BFO:0000001
entity
node8->node7