Modifiers matching allergen:

• airborne,
• common,
• strong,
• special,
• out,
• indoor,
• outdoor,
• additional,
• organic,
• inhalant,
• cutaneous,
• environmental,
• familiar,
• animal,
• new,
• reactive,
• large,
• major,
• important,
• single,
• nasty,
• cereal,
• natural,
• size,
• outside,
• microscopic,
• harmful,
• unhealthy,
• particular,
• active,
• fine,
• seasonal,
• harmless,
• relevant,
• potential,
• identifiable,
• systemic,
• possible,
• individual,
• perennial,
• unique,
• allergic,
• respiratory,
• dietary,
• typical,
• home,
• american,
• rare,

Simple categories matching harmful:

• liquid,
• defect,
• substance,
• contamination,
• chemical,
• metal,
• bug,
• organism,
• fuel,
• pest,
• thing,
• material,
• treatment,
• element,
• idea,
• animal,
• infection,
• microorganism,
• subsidy,
• choice,
• contaminant,
• bacteria,
• activity,
• result,
• allergen,
• factor,
• irradiation,
• parasite,
• fish,
• insect,
• tool,
• crime,
• compound,
• disease,
• test,
• deposit,
• solute,
• pathology,
• cell,
• food,
• curio,
• behaviour,
• complication,
• problem,
• nutrient,
• addiction,
• pollutant,
• invertebrate,
• therapy,
• gas,
• occurrence,
• diuretic,
• danger,
• intruder,
• herb,
• antigen,
• caterpillar,
• light,
• energy,
• solvent,
• salt,
• stuff,
• drug,
• symptom,
• sport,
• habit,
• industry,
• mineral,
• volatile,
• monomer,
• intervention,
• exposure,
• germ,
• force,
• adulterant,
• stimulus,
• sediment,
• molecule,
• emotion,
• agent,
• article,
• oxidant,
• fumigant,
• group,
• commodity,
• sector,
• reactant,
• circumstances,
• program,
• entity,
• process,
• situation,
• change,
• procedure,
• fumes,
• act,
• particle,
• ingredient,
• object,
• place,
• tax,
• practice,
• behavior,
• action,
• preservative,
• product,
• condition,
• notion,
• utterance,
• emission,
• creature,
• cause,
• arachnid,
• residue,
• item,
• software,
• residual,
• power,
• frequency,
• occupation,
• email,
• plant,
• fauna,
• aggression,
• work,
• trait,
• inhalant,
• state,
• stain,
• flavoring,
• illness,
• influence,
• deeds,
• component,
• alkaloid,
• content,
• radiation,
• pesticide,
• stimulant,
• microbe,
• fluid,
• pathogen,
• experience,
• waste,
• halogen,
• phenomenon,
• elements,
• service,
• fat,
• intermediate,
• fiber,
• fraction,
• stress,
• event,
• consequence,
• conduct,
• toxin,
• quality,
• beverage,
• code,
• disorder,
• information,
• constituent,
• predator,
• virus,
• radical,
• ion,
• atmosphere,
• filler,
• matter,
• drinking,
• medication,
• aerosol,
• impurity,
• abnormality,
• sweetener,
• weather,
• property,
• yeast,
• weeds,
• gene,
• environment,
• effect,