test
node1
BFO:0000003
occurrent
node1->node1
node4
BFO:0000015
process
node1->node4
node2
GO:0016491
oxidoreductase
activity
node3
GO:0016903
oxidoreductase
activity, acting on
the aldehyde or oxo
group of donors
node2->node3
node5
GO:0003674
molecular_function
node4->node5
node6
GO:0003824
catalytic activity
node5->node6
node6->node2
node7
BFO:0000001
entity
node7->node1