test
node1
GO:0048856
anatomical structure
development
node2
GO:0009888
tissue development
node1->node2
node8
GO:0060537
muscle tissue
development
node2->node8
node3
GO:0008150
biological_process
node4
GO:0032502
developmental process
node3->node4
node4->node1
node5
BFO:0000003
occurrent
node5->node5
node6
BFO:0000015
process
node5->node6
node6->node3
node7
BFO:0000001
entity
node7->node5
node9
GO:0048745
smooth muscle tissue
development
node8->node9