test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node3
BFO:0000015
process
node2->node3
node4
GO:0003674
molecular_function
node3->node4
node5
GO:0005488
binding
node4->node5
node6
GO:0097367
carbohydrate
derivative binding
node5->node6
node7
GO:0008289
lipid binding
node5->node7
node8
GO:0001530
lipopolysaccharide
binding
node6->node8
node7->node8