test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node5
BFO:0000015
process
node2->node5
node3
GO:0003674
molecular_function
node4
GO:0003824
catalytic activity
node3->node4
node6
GO:0016740
transferase activity
node4->node6
node5->node3
node7
GO:0016741
transferase activity,
transferring
one-carbon groups
node6->node7
node8
GO:0008168
methyltransferase
activity
node7->node8
node9
GO:0102307
erythromycin C
3''-o-methyltransfer
se activity
node8->node9