test
node1
GO:0001503
ossification
node2
GO:0036077
intratendonous
ossification
node1->node2
node3
GO:0008150
biological_process
node4
GO:0032501
multicellular
organismal process
node3->node4
node4->node1
node5
BFO:0000003
occurrent
node5->node5
node6
BFO:0000015
process
node5->node6
node6->node3
node7
BFO:0000001
entity
node7->node5