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:0003824
catalytic activity
node4->node5
node8
GO:0016740
transferase activity
node5->node8
node6
GO:0016741
transferase activity,
transferring
one-carbon groups
node7
GO:0008168
methyltransferase
activity
node6->node7
node9
GO:0102608
tetracenomycin B3
8-O-methyl
transferase activity
node7->node9
node8->node6