test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node8
BFO:0000015
process
node2->node8
node3
GO:0016757
glycosyltransferase
activity
node4
GO:0008373
sialyltransferase
activity
node3->node4
node5
GO:0016740
transferase activity
node5->node3
node6
GO:0003824
catalytic activity
node6->node5
node7
GO:0003674
molecular_function
node7->node6
node8->node7