test
node1
GO:0071944
cell periphery
node2
GO:0005886
plasma membrane
node1->node2
node4
GO:0009897
external side of
plasma membrane
node2->node4
node3
GO:0009986
cell surface
node3->node4
node5
GO:0016020
membrane
node5->node2
node7
GO:0098552
side of membrane
node5->node7
node6
GO:0110165
cellular anatomical
entity
node6->node1
node6->node3
node6->node5
node6->node7
node7->node4
node8
GO:0005575
cellular_component
node8->node6