test
node1
GO:0008150
biological_process
node2
GO:0032502
developmental process
node1->node2
node7
GO:0048856
anatomical structure
development
node2->node7
node3
BFO:0000015
process
node3->node1
node4
GO:0009888
tissue development
node5
GO:0060429
epithelium
development
node4->node5
node6
BFO:0000003
occurrent
node6->node3
node6->node6
node7->node4
node8
BFO:0000001
entity
node8->node6