test
node1
BFO:0000003
occurrent
node1->node1
node5
BFO:0000015
process
node1->node5
node2
GO:0098771
inorganic ion
homeostasis
node3
GO:0055071
manganese ion
homeostasis
node2->node3
node4
GO:0055080
monoatomic cation
homeostasis
node4->node3
node6
GO:0008150
biological_process
node5->node6
node8
GO:0042592
homeostatic process
node6->node8
node7
BFO:0000001
entity
node7->node1
node9
GO:0048878
chemical homeostasis
node8->node9
node9->node2
node10
GO:0050801
monoatomic ion
homeostasis
node9->node10
node10->node4