test
node1
BFO:0000001
entity
node2
BFO:0000002
continuant
node1->node2
node2->node2
node3
BFO:0000020
specifically
dependent continuant
node2->node3
node9
BFO:0000019
quality
node3->node9
node3->node3
node4
PATO:0000001
quality
node3->node4
node7
PATO:0001241
physical object
quality
node4->node7
node5
TO:0000017
plant morphology
trait
node6
TO:0000839
plant structure
morphology trait
node5->node6
node13
TO:0000843
portion of plant
tissue morphology
trait
node6->node13
node8
PATO:0001555
has number of
node7->node8
node7->node5
node11
TO:0000472
vascular bundle
number
node8->node11
node9->node9
node9->node7
node10
TO:0000387
plant trait
node10->node5
node12
TO:0000470
vascular tissue
morphology trait
node12->node11
node13->node12