test
node1
BFO:0000015
process
node2
GO:0003674
molecular_function
node1->node2
node3
GO:0003824
catalytic activity
node2->node3
node4
GO:0016787
hydrolase activity
node3->node4
node5
BFO:0000001
entity
node6
BFO:0000003
occurrent
node5->node6
node6->node1
node6->node6