test
node1
GO:0003674
molecular_function
node2
GO:0140104
molecular carrier
activity
node1->node2
node5
GO:0140132
iron-sulfur cluster
carrier activity
node2->node5
node3
BFO:0000003
occurrent
node3->node3
node4
BFO:0000015
process
node3->node4
node4->node1
node6
BFO:0000001
entity
node6->node3