test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node6
BFO:0000015
process
node2->node6
node3
GO:0005488
binding
node4
GO:0097243
flavonoid binding
node3->node4
node5
GO:0003674
molecular_function
node5->node3
node6->node5