test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node4
GO:0008150
biological_process
node2->node4
node3
BFO:0000001
entity
node3->node1
node5
GO:0009987
cellular process
node4->node5
node7
GO:0050789
regulation of
biological process
node4->node7
node11
GO:0065007
biological regulation
node4->node11
node12
GO:0050896
response to stimulus
node4->node12
node6
GO:0050794
regulation of
cellular process
node5->node6
node9
GO:0007165
signal transduction
node5->node9
node10
GO:0007154
cell communication
node5->node10
node13
GO:0051716
cellular response to
stimulus
node5->node13
node6->node9
node7->node6
node8
GO:0023052
signaling
node7->node8
node8->node9
node14
GO:0007166
cell surface receptor
signaling pathway
node9->node14
node10->node9
node11->node7
node12->node13
node13->node9
node15
GO:0071526
semaphorin-plexin
signaling pathway
node14->node15