test
node1
GO:0071840
cellular component
organization or
biogenesis
node2
GO:0044085
cellular component
biogenesis
node1->node2
node3
GO:0009987
cellular process
node3->node1
node4
GO:0008150
biological_process
node4->node3
node5
BFO:0000001
entity
node6
BFO:0000003
occurrent
node5->node6
node6->node6
node7
BFO:0000015
process
node6->node7
node7->node4