test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node8
GO:0008150
biological_process
node2->node8
node3
GO:0048869
cellular
developmental process
node4
GO:0030154
cell differentiation
node3->node4
node6
GO:0030855
epithelial cell
differentiation
node4->node6
node5
GO:0060429
epithelium
development
node5->node6
node12
GO:0002065
columnar/cuboidal
epithelial cell
differentiation
node6->node12
node7
BFO:0000001
entity
node7->node1
node9
GO:0009987
cellular process
node8->node9
node10
GO:0032502
developmental process
node8->node10
node9->node3
node10->node3
node11
GO:0048856
anatomical structure
development
node10->node11
node14
GO:0009888
tissue development
node11->node14
node13
GO:0036305
ameloblast
differentiation
node12->node13
node14->node5