test
node1
GO:0030154
cell differentiation
node2
GO:0061521
hepatic stellate cell
differentiation
node1->node2
node3
GO:0048869
cellular
developmental process
node3->node1
node4
GO:0032502
developmental process
node4->node3
node5
GO:0008150
biological_process
node7
GO:0009987
cellular process
node5->node7
node5->node4
node6
BFO:0000003
occurrent
node6->node6
node8
BFO:0000015
process
node6->node8
node7->node3
node8->node5
node9
BFO:0000001
entity
node9->node6