test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node14
BFO:0000015
process
node2->node14
node3
GO:0048468
cell development
node4
GO:0070285
pigment cell
development
node3->node4
node5
GO:0048869
cellular
developmental process
node5->node3
node6
GO:0030154
cell differentiation
node5->node6
node6->node3
node8
GO:0050931
pigment cell
differentiation
node6->node8
node7
GO:0032502
developmental process
node7->node5
node13
GO:0048856
anatomical structure
development
node7->node13
node8->node4
node9
GO:0043473
pigmentation
node10
GO:0048066
developmental
pigmentation
node9->node10
node10->node8
node11
GO:0008150
biological_process
node11->node7
node11->node9
node12
GO:0009987
cellular process
node11->node12
node12->node5
node13->node3
node14->node11