test
node1
GO:0048856
anatomical structure
development
node2
GO:0007275
multicellular
organism development
node1->node2
node3
GO:0048513
animal organ
development
node1->node3
node5
GO:0048731
system development
node1->node5
node2->node5
node4
GO:0007507
heart development
node3->node4
node6
GO:0072359
circulatory system
development
node5->node6
node6->node4
node7
BFO:0000003
occurrent
node7->node7
node8
BFO:0000015
process
node7->node8
node9
GO:0008150
biological_process
node8->node9
node10
GO:0032502
developmental process
node9->node10
node11
GO:0032501
multicellular
organismal process
node9->node11
node10->node1
node11->node2
node12
BFO:0000001
entity
node12->node7