test
node1
GO:0007276
gamete generation
node2
GO:0048232
male gamete
generation
node1->node2
node13
GO:0007283
spermatogenesis
node2->node13
node3
GO:0000003
reproduction
node4
GO:0032504
multicellular
organism reproduction
node3->node4
node8
GO:0022414
reproductive process
node3->node8
node20
GO:0019953
sexual reproduction
node3->node20
node5
GO:0048609
multicellular
organismal
reproductive process
node4->node5
node19
GO:0022412
cellular process
involved in
reproduction in
multicellular
organism
node4->node19
node5->node1
node6
GO:0008150
biological_process
node6->node3
node7
GO:0032501
multicellular
organismal process
node6->node7
node6->node8
node9
GO:0032502
developmental process
node6->node9
node18
GO:0009987
cellular process
node6->node18
node7->node4
node8->node5
node10
GO:0003006
developmental process
involved in
reproduction
node8->node10
node8->node19
node9->node10
node12
GO:0048869
cellular
developmental process
node9->node12
node11
GO:0048515
spermatid
differentiation
node10->node11
node10->node13
node17
GO:0030154
cell differentiation
node12->node17
node13->node11
node14
BFO:0000003
occurrent
node14->node14
node15
BFO:0000015
process
node14->node15
node15->node6
node16
BFO:0000001
entity
node16->node14
node17->node11
node18->node12
node18->node19
node19->node11
node20->node1