test
node1
BFO:0000003
occurrent
node1->node1
node4
BFO:0000015
process
node1->node4
node2
GO:0008150
biological_process
node3
GO:0032501
multicellular
organismal process
node2->node3
node7
GO:0003008
system process
node3->node7
node4->node2
node5
GO:0014896
muscle hypertrophy
node6
GO:0003298
physiological muscle
hypertrophy
node5->node6
node8
GO:0003012
muscle system process
node7->node8
node8->node5
node9
BFO:0000001
entity
node9->node1