test
node1
TO:0000054
animal damage
response trait
node2
TO:0000261
insect damage
response trait
node1->node2
node3
TO:0006067
aphid resistance
node2->node3
node4
CO_331:0000365
sweetpotato reaction
to aphids trait
node3->node4
node5
TO:0000179
biotic plant stress
trait
node5->node1
node6
TO:0000387
plant trait
node7
TO:0000164
plant stress trait
node6->node7
node7->node5