test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node9
BFO:0000015
process
node2->node9
node3
GO:0009653
anatomical structure
morphogenesis
node4
GO:0048729
tissue morphogenesis
node3->node4
node5
GO:0002009
morphogenesis of an
epithelium
node4->node5
node10
GO:0001738
morphogenesis of a
polarized epithelium
node5->node10
node6
GO:0048856
anatomical structure
development
node6->node3
node7
GO:0009888
tissue development
node6->node7
node7->node4
node11
GO:0060429
epithelium
development
node7->node11
node8
GO:0032502
developmental process
node8->node3
node8->node6
node12
GO:0008150
biological_process
node9->node12
node11->node5
node12->node8