test
node1
GO:0006810
transport
node2
GO:0015669
gas transport
node1->node2
node3
GO:0051234
establishment of
localization
node3->node1
node4
BFO:0000001
entity
node5
BFO:0000003
occurrent
node4->node5
node5->node5
node8
BFO:0000015
process
node5->node8
node6
GO:0008150
biological_process
node7
GO:0051179
localization
node6->node7
node7->node3
node8->node6