test
node1
GO:0050896
response to stimulus
node2
GO:0009605
response to external
stimulus
node1->node2
node4
GO:0042330
taxis
node2->node4
node3
GO:0040011
locomotion
node3->node4
node5
GO:0008150
biological_process
node5->node1
node5->node3
node6
BFO:0000003
occurrent
node6->node6
node7
BFO:0000015
process
node6->node7
node7->node5
node8
BFO:0000001
entity
node8->node6