test
node1
PATO:0000001
quality
node2
PATO:0001236
process quality
node1->node2
node3
TO:0000283
biological process
trait
node2->node3
node4
TO:0012006
fluorescence related
trait
node3->node4
node9
TO:0012004
quantum yield
node4->node9
node5
BFO:0000002
continuant
node5->node5
node6
BFO:0000020
specifically
dependent continuant
node5->node6
node6->node1
node6->node6
node7
BFO:0000001
entity
node7->node5
node8
TO:0000387
plant trait
node8->node3