test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node3
GO:0008150
biological_process
node2->node3
node4
GO:0009987
cellular process
node3->node4
node9
GO:0032502
developmental process
node3->node9
node7
GO:0048869
cellular
developmental process
node4->node7
node5
GO:0045165
cell fate commitment
node6
GO:0001708
cell fate
specification
node5->node6
node7->node5
node7->node6
node8
GO:0030154
cell differentiation
node7->node8
node8->node5
node9->node7
node10
BFO:0000001
entity
node10->node1