test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node3
GO:0008150
biological_process
node2->node3
node4
GO:0009987
cellular process
node3->node4
node8
GO:0051179
localization
node3->node8
node9
GO:0051641
cellular localization
node4->node9
node5
BFO:0000001
entity
node5->node1
node6
GO:0033036
macromolecule
localization
node7
GO:0070727
cellular
macromolecule
localization
node6->node7
node8->node6
node8->node9
node9->node7