test
node1
GO:0001501
skeletal system
development
node2
GO:0060348
bone development
node1->node2
node3
GO:0032501
multicellular
organismal process
node4
GO:0007275
multicellular
organism development
node3->node4
node7
GO:0048731
system development
node4->node7
node5
GO:0008150
biological_process
node5->node3
node6
GO:0032502
developmental process
node5->node6
node8
GO:0048856
anatomical structure
development
node6->node8
node7->node1
node8->node4
node10
GO:0048513
animal organ
development
node8->node10
node8->node7
node9
BFO:0000003
occurrent
node9->node9
node11
BFO:0000015
process
node9->node11
node10->node2
node11->node5
node12
BFO:0000001
entity
node12->node9