test
node1
GO:0110165
cellular anatomical
entity
node2
GO:0016020
membrane
node1->node2
node3
GO:0071944
cell periphery
node1->node3
node6
GO:0031911
cytoproct
node1->node6
node4
GO:0005886
plasma membrane
node2->node4
node3->node4
node4->node6
node5
GO:0005575
cellular_component
node5->node1