test
node1
BFO:0000001
entity
node2
BFO:0000002
continuant
node1->node2
node2->node2
node7
BFO:0000004
independent
continuant
node2->node7
node3
PO:0025025
root system
node4
PO:0009005
root
node3->node4
node14
PO:0020127
primary root
node4->node14
node5
PO:0009008
plant organ
node6
PO:0025004
plant axis
node5->node6
node6->node4
node7->node7
node10
BFO:0000040
material entity
node7->node10
node8
PO:0009011
plant structure
node9
PO:0025496
multi-tissue plant
structure
node8->node9
node13
PO:0025497
collective plant
structure
node8->node13
node9->node5
node11
PO:0025131
plant anatomical
entity
node10->node11
node11->node8
node12
PO:0025007
collective plant
organ structure
node12->node3
node13->node12