test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node10
BFO:0000015
process
node2->node10
node3
GO:0048856
anatomical structure
development
node4
GO:0007275
multicellular
organism development
node3->node4
node8
GO:0048731
system development
node3->node8
node13
GO:0048513
animal organ
development
node3->node13
node4->node8
node5
GO:0035272
exocrine system
development
node6
GO:0007431
salivary gland
development
node5->node6
node7
GO:0032502
developmental process
node7->node3
node8->node5
node9
GO:0048732
gland development
node9->node6
node11
GO:0008150
biological_process
node10->node11
node11->node7
node12
GO:0032501
multicellular
organismal process
node11->node12
node12->node4
node13->node9