test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node7
GO:0008150
biological_process
node2->node7
node3
BFO:0000001
entity
node3->node1
node4
GO:0048856
anatomical structure
development
node5
GO:0007275
multicellular
organism development
node4->node5
node8
GO:0048731
system development
node4->node8
node5->node8
node6
GO:0032501
multicellular
organismal process
node6->node5
node7->node6
node9
GO:0032502
developmental process
node7->node9
node12
GO:0009987
cellular process
node7->node12
node13
GO:0007399
nervous system
development
node8->node13
node9->node4
node10
GO:0048869
cellular
developmental process
node9->node10
node11
GO:0030154
cell differentiation
node10->node11
node14
GO:0022008
neurogenesis
node11->node14
node12->node10
node13->node14
node15
GO:0048699
generation of neurons
node14->node15