test
node1
TO:0000387
plant trait
node2
TO:0000371
yield trait
node1->node2
node5
TO:0000327
shoot system yield
trait
node2->node5
node3
TO:0001071
shoot axis tuber
yield
node4
CO_343:0000372
yam total tuber
weight per plant
trait
node3->node4
node5->node3