test
node1
PO:0006001
phyllome
node7
PO:0025034
leaf
node1->node7
node2
PO:0025139
phyllome apex
node1->node2
node8
PO:0020137
leaf apex
node2->node8
node3
BFO:0000001
entity
node4
BFO:0000002
continuant
node3->node4
node4->node4
node6
BFO:0000004
independent
continuant
node4->node6
node5
PO:0009008
plant organ
node5->node1
node12
PO:0025001
cardinal organ part
node5->node12
node6->node6
node13
BFO:0000040
material entity
node6->node13
node7->node8
node9
PO:0009011
plant structure
node10
PO:0025496
multi-tissue plant
structure
node9->node10
node15
PO:0025497
collective plant
structure
node9->node15
node11
PO:0025498
cardinal part of
multi-tissue plant
structure
node9->node11
node10->node5
node10->node11
node11->node12
node12->node2
node14
PO:0025131
plant anatomical
entity
node13->node14
node14->node9
node16
PO:0025007
collective plant
organ structure
node15->node16
node17
PO:0009006
shoot system
node16->node17
node17->node1