test
node1
BFO:0000020
specifically
dependent continuant
node1->node1
node2
PATO:0000001
quality
node1->node2
node3
PATO:0001236
process quality
node2->node3
node6
TO:0000283
biological process
trait
node3->node6
node4
BFO:0000001
entity
node5
BFO:0000002
continuant
node4->node5
node5->node1
node5->node5
node7
TO:0002658
starch grain
synthesis
node6->node7
node8
TO:0000387
plant trait
node8->node6