test
node1
BFO:0000004
independent
continuant
node1->node1
node2
BFO:0000040
material entity
node1->node2
node9
PO:0025131
plant anatomical
entity
node2->node9
node3
PO:0025606
native plant cell
node4
PO:0030059
tmema cell
node3->node4
node5
BFO:0000002
continuant
node5->node1
node5->node5
node6
BFO:0000001
entity
node6->node5
node7
PO:0009002
plant cell
node7->node3
node8
PO:0009011
plant structure
node8->node7
node9->node8