a toad is a mean of poisoning plant
toad is venomous_animal. toad is not venomous_animal. european_toad is true_toad. fire_bellied_toad is toad. bleeding_toad is not amphibian. fire_bellied_toad is not toad. bleeding_toad is amphibian. mongolian_toad is toad. south_american_poison_toad is not frog. south_american_poison_toad is frog.