test
node1
GO:0008150
biological_process
node2
GO:0009987
cellular process
node1->node2
node5
GO:0048870
cell motility
node2->node5
node3
BFO:0000015
process
node3->node1
node4
BFO:0000003
occurrent
node4->node3
node4->node4
node6
BFO:0000001
entity
node6->node4