test
node1
BFO:0000020
specifically
dependent continuant
node1->node1
node5
PATO:0000001
quality
node1->node5
node2
TO:0000387
plant trait
node3
TO:0000283
biological process
trait
node2->node3
node8
TO:0020096
mineral and ion
transport trait
node3->node8
node4
BFO:0000002
continuant
node4->node1
node4->node4
node6
PATO:0001236
process quality
node5->node6
node6->node3
node7
BFO:0000001
entity
node7->node4