sentences: sufficient of poison bark dryness
docs: water_hemlock is poisonous_plant. hemlock is poisonous_plant. poison_ash is poisonous_plant. western_poison_oak is poisonous_plant. water_fennel is poisonous_plant. alcohol_poison is poisoning. cassia_bark is bark. hemlock is plant_toxin. bark is hard_covering_for_tree. bark is covering.