test
node1
BFO:0000003
occurrent
node1->node1
node4
BFO:0000015
process
node1->node4
node2
GO:0044419
biological process
involved in
interspecies
interaction between
organisms
node3
GO:0044403
biological process
involved in symbiotic
interaction
node2->node3
node5
GO:0008150
biological_process
node4->node5
node5->node2
node6
BFO:0000001
entity
node6->node1