test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node3
BFO:0000015
process
node2->node3
node4
GO:0008150
biological_process
node3->node4
node10
GO:0032501
multicellular
organismal process
node4->node10
node5
GO:0003008
system process
node6
GO:0007588
excretion
node5->node6
node7
GO:0003014
renal system process
node5->node7
node8
GO:0097254
renal tubular
secretion
node6->node8
node7->node8
node9
GO:0097744
renal urate salt
excretion
node8->node9
node10->node5