test
node1
TO:0000112
microbial disease
response
node2
TO:0000148
viral disease
response
node1->node2
node5
CO_334:0000036
cassava brown streak
disease leaf severity
trait
node2->node5
node3
TO:0000387
plant trait
node4
TO:0000164
plant stress trait
node3->node4
node6
TO:0000179
biotic plant stress
trait
node4->node6
node6->node1