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