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
node4
PO:0006001
phyllome
node3->node4
node16
PO:0025094
sporangium
node3->node16
node8
PO:0009026
sporophyll
node4->node8
node5
PO:0025202
microsporangium
node6
PO:0025277
pollen sac
node5->node6
node7->node7
node11
BFO:0000040
material entity
node7->node11
node13
PO:0009028
microsporophyll
node8->node13
node9
PO:0009011
plant structure
node10
PO:0025496
multi-tissue plant
structure
node9->node10
node14
PO:0025497
collective plant
structure
node9->node14
node10->node3
node12
PO:0025131
plant anatomical
entity
node11->node12
node12->node9
node13->node6
node15
PO:0025007
collective plant
organ structure
node14->node15
node17
PO:0009006
shoot system
node15->node17
node16->node5
node17->node4