test
node1
BFO:0000001
entity
node2
BFO:0000002
continuant
node1->node2
node2->node2
node7
BFO:0000004
independent
continuant
node2->node7
node3
PO:0009008
plant organ
node16
PO:0025001
cardinal organ part
node3->node16
node4
PO:0025004
plant axis
node3->node4
node8
PO:0025029
shoot axis
node4->node8
node9
PO:0025197
stele
node4->node9
node5
PO:0025198
shoot axis stele
node6
PO:0025200
stem stele
node5->node6
node7->node7
node14
BFO:0000040
material entity
node7->node14
node13
PO:0009047
stem
node8->node13
node8->node5
node9->node5
node10
PO:0009011
plant structure
node11
PO:0025496
multi-tissue plant
structure
node10->node11
node17
PO:0025497
collective plant
structure
node10->node17
node12
PO:0025498
cardinal part of
multi-tissue plant
structure
node10->node12
node11->node3
node11->node12
node12->node16
node13->node6
node15
PO:0025131
plant anatomical
entity
node14->node15
node15->node10
node16->node9
node18
PO:0025007
collective plant
organ structure
node17->node18
node19
PO:0009006
shoot system
node18->node19
node19->node8