test
node1
BFO:0000001
entity
node2
BFO:0000002
continuant
node1->node2
node2->node2
node3
BFO:0000020
specifically
dependent continuant
node2->node3
node7
BFO:0000019
quality
node3->node7
node3->node3
node4
PATO:0000001
quality
node3->node4
node8
PATO:0001241
physical object
quality
node4->node8
node5
TO:0000017
plant morphology
trait
node6
TO:0000839
plant structure
morphology trait
node5->node6
node9
TO:0000836
multi-tissue plant
structure morphology
trait
node6->node9
node12
TO:0000840
collective plant
structure morphology
trait
node6->node12
node7->node7
node7->node8
node8->node5
node17
TO:0000736
plant organ
morphology trait
node9->node17
node10
TO:0000739
shoot axis morphology
trait
node11
TO:0000346
tiller number
node10->node11
node13
TO:0000842
collective plant
organ structure
morphology trait
node12->node13
node15
TO:0000077
shoot system
morphology trait
node13->node15
node14
TO:0000738
plant axis morphology
trait
node14->node10
node18
TO:0000027
culm number
node15->node18
node16
TO:0000387
plant trait
node16->node5
node17->node14
node18->node11