test
node1
PO:0007134
sporophyte vegetative
stage
node2
PO:0007057
seed germination
stage
node1->node2
node3
PO:0009012
plant structure
development stage
node4
PO:0007033
whole plant
development stage
node3->node4
node8
PO:0025337
life of whole plant
stage
node4->node8
node5
PO:0028002
sporophyte
development stage
node4->node5
node5->node1
node6
BFO:0000015
process
node6->node3
node7
BFO:0000003
occurrent
node7->node7
node7->node6
node8->node5
node9
BFO:0000001
entity
node9->node7