test
node1
GO:0110165
cellular anatomical
entity
node2
GO:0071944
cell periphery
node1->node2
node4
GO:0043668
exine
node1->node4
node5
GO:0043669
ectexine
node1->node5
node6
GO:0030312
external
encapsulating
structure
node1->node6
node7
GO:0043670
foot layer
node1->node7
node2->node6
node3
GO:0043667
pollen wall
node3->node4
node4->node5
node5->node7
node6->node3
node8
GO:0005575
cellular_component
node8->node1