test
node1
BFO:0000003
occurrent
node1->node1
node4
BFO:0000015
process
node1->node4
node2
GO:0009987
cellular process
node3
GO:0048870
cell motility
node2->node3
node7
GO:0016477
cell migration
node3->node7
node5
GO:0008150
biological_process
node4->node5
node5->node2
node6
BFO:0000001
entity
node6->node1
node8
GO:0097534
lymphoid lineage cell
migration
node7->node8