test
node1
BFO:0000015
process
node2
GO:0008150
biological_process
node1->node2
node6
GO:0032501
multicellular
organismal process
node2->node6
node3
GO:0090130
tissue migration
node4
GO:0090132
epithelium migration
node3->node4
node5
BFO:0000003
occurrent
node5->node1
node5->node5
node6->node3
node7
BFO:0000001
entity
node7->node5