test
node1
GO:0032502
developmental process
node2
GO:0048646
anatomical structure
formation involved in
morphogenesis
node1->node2
node3
GO:0048856
anatomical structure
development
node1->node3
node4
GO:0009653
anatomical structure
morphogenesis
node1->node4
node6
GO:0035148
tube formation
node2->node6
node3->node4
node14
GO:0035295
tube development
node3->node14
node17
GO:0007275
multicellular
organism development
node3->node17
node20
GO:0048731
system development
node3->node20
node4->node2
node5
GO:0035239
tube morphogenesis
node4->node5
node5->node6
node16
GO:0035149
lumen formation, open
tracheal system
node6->node16
node7
GO:0008150
biological_process
node7->node1
node13
GO:0032501
multicellular
organismal process
node7->node13
node18
GO:0065007
biological regulation
node7->node18
node8
GO:0060541
respiratory system
development
node9
GO:0007424
open tracheal system
development
node8->node9
node10
GO:0035152
regulation of tube
architecture, open
tracheal system
node9->node10
node10->node16
node11
BFO:0000001
entity
node12
BFO:0000003
occurrent
node11->node12
node12->node12
node15
BFO:0000015
process
node12->node15
node13->node17
node14->node5
node15->node7
node17->node14
node17->node20
node19
GO:0065008
regulation of
biological quality
node18->node19
node19->node10
node20->node8