test
node1
BFO:0000015
process
node2
GO:0008150
biological_process
node1->node2
node3
GO:0016032
viral process
node2->node3
node4
GO:0019058
viral life cycle
node3->node4
node7
GO:0019068
virion assembly
node3->node7
node8
GO:0046755
viral budding
node3->node8
node4->node7
node5
BFO:0000001
entity
node6
BFO:0000003
occurrent
node5->node6
node6->node1
node6->node6
node7->node8