test
node1
BFO:0000015
process
node2
GO:0008150
biological_process
node1->node2
node3
GO:0009987
cellular process
node2->node3
node10
GO:0008219
cell death
node3->node10
node4
GO:0006915
apoptotic process
node5
GO:0034349
glial cell apoptotic
process
node4->node5
node6
GO:0097252
oligodendrocyte
apoptotic process
node5->node6
node7
GO:0012501
programmed cell death
node7->node4
node8
BFO:0000001
entity
node9
BFO:0000003
occurrent
node8->node9
node9->node1
node9->node9
node10->node7