Modifiers matching cavity:

• major,
• micro,
• underground,
• adjacent,
• natural,
• cardiac,
• vascular,
• sensitive,
• small,
• complex,
• internal,
• organic,
• mucosal,
• hollow,
• large,
• dead,
• artificial,
• peripheral,
• interior,
• pelvic,
• deep,
• uterine,
• inner,
• moist,
• tubular,
• neighboring,
• accessible,
• secretory,
• closed,
• anatomical,
• thoracic,
• dark,
• over,
• abdominal,
• simple,
• thin,
• negative,
• subsurface,
• nearby,
• available,
• intermediate,

Simple categories matching artificial:

• reef,
• structure,
• material,
• arm,
• wealth,
• medium,
• surface,
• container,
• bait,
• waterway,
• fiber,
• drain,
• barrier,
• preservative,
• activator,
• ground,
• additive,
• condition,
• gemstone,
• sign,
• cavity,
• selection,
• sweetener,
• object,
• system,
• hormone,
• substrate,
• body,
• jewellery,
• treatment,
• leather,
• activity,
• fibre,
• ingredient,
• defence,
• emulsion,
• harbor,
• scent,
• distortion,
• process,
• article,
• disturbance,
• panel,
• fabric,
• habitat,
• component,
• perturbation,
• sound,
• intelligence,
• crystal,
• substance,
• order,
• blockage,
• sense,
• binder,
• gem,
• organ,
• compound,
• actuation,
• casing,
• fuel,
• equipment,
• care,
• tissue,
• action,
• practice,
• aggregate,
• device,
• silk,
• obstacle,
• control,
• cue,
• unit,
• noisemaker,
• contraceptive,
• muscle,
• progestin,
• feature,
• resin,
• character,
• artefact,
• feed,
• illumination,
• pond,
• cause,
• domain,
• obstruction,
• aid,
• defect,
• decoration,
• piece,
• glass,
• food,
• measure,
• chemical,
• particle,
• fill,
• conduit,
• tree,
• instrument,
• support,
• thing,
• boundary,
• receptacle,
• odour,
• creature,
• network,
• means,
• flavor,
• noise,
• flavour,
• shade,
• space,
• stimulant,
• organs,
• phenomenon,
• appliance,
• fastener,
• entity,
• flavoring,
• vegetation,
• agent,
• preparation,
• hazard,
• layer,
• clothing,
• fragrance,
• textile,
• polyester,
• shelter,
• housing,
• attribute,
• polymer,
• siding,
• deposit,
• channel,
• floor,
• feeding,
• abrasive,
• lubricant,
• production,
• conveyance,
• situation,
• weight,
• item,
• humanoid,
• flower,
• environment,
• satellite,
• lake,
• watercourse,
• grouping,
• event,
• land,
• method,
• cosmetic,
• devices,
• joint,
• lighting,
• oil,
• limb,
• wetland,
• flavouring,
• enclosure,
• effort,
• thermostat,
• cloning,
• language,
• image,
• gas,
• dielectric,
• stone,
• graphite,
• marker,
• source,
• illuminant,
• grass,
• construction,
• stimulus,
• works,
• bone,
• polyamide,
• plant,
• machine,
• intoxicant,
• goal,
• facility,
• fluid,
• lure,
• perch,
• person,
• filament,
• pathogen,
• constraint,
• location,
• sediment,
• tube,
• institution,
• rod,
• enterprise,
• nail,
• drainage,
• vesicle,
• relic,
• forest,
• part,
• jewel,
• marking,
• creation,
• flaw,
• extremity,
• sensor,
• rock,
• area,
• sapphire,
• highway,
• product,
• light,