Assertion: toxin's effect | /r/CapableOf | turn body's natural defenses
Facets:
value: against itself
type: TRANSITIVE-OBJECT
Source sentences:
text: Plant-based contact irritants, such as that possessed by poison ivy or poison oak, are often classed as allergens rather than poisons; the effect of an allergen being not a poison as such, but to turn the body's natural defenses against itself.