test
node1
TO:0000439
fungal disease
response
node2
TO:0020055
wheat stripe rust
disease resistance
node1->node2
node3
CO_321:0000909
wheat stripe rust
spike severity trait
node2->node3
node4
TO:0000112
microbial disease
response
node4->node1
node5
TO:0000387
plant trait
node6
TO:0000164
plant stress trait
node5->node6
node7
TO:0000179
biotic plant stress
trait
node6->node7
node7->node4