test
node1
GO:0002118
aggressive behavior
node2
GO:0002121
inter-male aggressive
behavior
node1->node2
node3
GO:0007610
behavior
node3->node1
node4
BFO:0000003
occurrent
node4->node4
node6
BFO:0000015
process
node4->node6
node5
GO:0032501
multicellular
organismal process
node5->node3
node7
GO:0008150
biological_process
node6->node7
node7->node5
node8
BFO:0000001
entity
node8->node4