if something frog a sunburn then that something is required for that see
chameleon_tree_frog is not tree_toad. without_shade_there is not risk_of_sunburn. bleating_tree_frog is not amphibian. short_footed_frog is not tree_frog. without_shade_there is risk_of_sunburn. bleating_tree_frog is amphibian. short_footed_frog is tree_frog. glass_frog is not amphibian. seeing_blury_images is sign_need_glasses. glass_frog is amphibian.