test
node1
GO:0048870
cell motility
node2
GO:0097722
sperm motility
node1->node2
node3
GO:0000003
reproduction
node4
GO:0022414
reproductive process
node3->node4
node4->node2
node5
BFO:0000003
occurrent
node5->node5
node8
BFO:0000015
process
node5->node8
node6
GO:0008150
biological_process
node6->node3
node7
GO:0009987
cellular process
node6->node7
node6->node4
node7->node1
node8->node6
node9
BFO:0000001
entity
node9->node5