test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node6
GO:0008150
biological_process
node2->node6
node3
BFO:0000001
entity
node3->node1
node4
GO:0009987
cellular process
node5
GO:0007154
cell communication
node4->node5
node8
GO:0007267
cell-cell signaling
node5->node8
node6->node4
node7
GO:0065007
biological regulation
node6->node7
node10
GO:0050789
regulation of
biological process
node6->node10
node7->node10
node9
GO:0036363
transforming growth
factor beta
activation
node8->node9
node11
GO:0023052
signaling
node10->node11
node11->node8