test
node1
GO:0005575
cellular_component
node2
GO:0110165
cellular anatomical
entity
node1->node2
node3
GO:0030312
external
encapsulating
structure
node2->node3
node4
GO:0071944
cell periphery
node2->node4
node5
GO:0031012
extracellular matrix
node3->node5
node4->node3
node6
GO:0009519
middle lamella
node5->node6