test
node1
GO:0030424
axon
node2
GO:0150034
distal axon
node1->node2
node3
GO:0120025
plasma membrane
bounded cell
projection
node4
GO:0043005
neuron projection
node3->node4
node4->node1
node5
GO:0042995
cell projection
node5->node3
node6
GO:0005575
cellular_component
node7
GO:0110165
cellular anatomical
entity
node6->node7
node7->node2
node7->node5