test
node1
BFO:0000004
independent
continuant
node1->node1
node7
BFO:0000040
material entity
node1->node7
node2
BFO:0000002
continuant
node2->node1
node2->node2
node3
PO:0009011
plant structure
node4
PO:0000003
whole plant
node3->node4
node8
PO:0009009
plant embryo
node4->node8
node5
BFO:0000001
entity
node5->node2
node6
PO:0025131
plant anatomical
entity
node6->node3
node7->node6