test
node1
BFO:0000001
entity
node2
BFO:0000003
occurrent
node1->node2
node2->node2
node3
BFO:0000015
process
node2->node3
node6
GO:0003674
molecular_function
node3->node6
node4
GO:0140640
catalytic activity,
acting on a nucleic
acid
node5
GO:0140098
catalytic activity,
acting on RNA
node4->node5
node7
GO:0003824
catalytic activity
node6->node7
node7->node4