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