test
node1
TO:0002637
leaf size
node2
TO:0000258
leaf thickness
node1->node2
node1->node2
node3
BFO:0000001
entity
node4
BFO:0000002
continuant
node3->node4
node4->node4
node5
BFO:0000020
specifically
dependent continuant
node4->node5
node10
BFO:0000019
quality
node5->node10
node5->node5
node6
PATO:0000001
quality
node5->node6
node12
PATO:0001241
physical object
quality
node6->node12
node7
PATO:0000915
thickness
node7->node2
node8
TO:0000017
plant morphology
trait
node9
TO:0000839
plant structure
morphology trait
node8->node9
node15
TO:0000836
multi-tissue plant
structure morphology
trait
node9->node15
node10->node10
node18
PATO:0000051
morphology
node10->node18
node10->node12
node11
PATO:0000117
size
node14
PATO:0001708
1-D extent
node11->node14
node11->node1
node12->node18
node12->node8
node13
TO:0000748
leaf morphology trait
node13->node1
node14->node7
node16
TO:0000736
plant organ
morphology trait
node15->node16
node17
TO:0000747
phyllome morphology
trait
node16->node17
node17->node13
node18->node11
node19
TO:0000387
plant trait
node19->node8