test
node1
GO:0051179
localization
node2
GO:0033036
macromolecule
localization
node1->node2
node4
GO:0051641
cellular localization
node1->node4
node5
GO:0070727
cellular
macromolecule
localization
node2->node5
node3
BFO:0000003
occurrent
node3->node3
node6
BFO:0000015
process
node3->node6
node4->node5
node10
GO:0008104
protein localization
node5->node10
node7
GO:0008150
biological_process
node6->node7
node7->node1
node8
GO:0022414
reproductive process
node7->node8
node13
GO:0000003
reproduction
node7->node13
node14
GO:0009987
cellular process
node7->node14
node9
GO:0009566
fertilization
node8->node9
node11
GO:0060476
protein localization
involved in acrosome
reaction
node8->node11
node12
GO:0007340
acrosome reaction
node8->node12
node18
GO:0007338
single fertilization
node9->node18
node10->node11
node12->node11
node13->node8
node15
GO:0019953
sexual reproduction
node13->node15
node14->node4
node16
GO:0030029
actin filament-based
process
node14->node16
node15->node9
node16->node11
node17
BFO:0000001
entity
node17->node3
node18->node12