Modifiers matching labor:

• temporary,
• organized,
• skilled,
• physical,
• mental,
• light,
• direct,
• useful,
• heavy,
• casual,
• hard,
• difficult,
• female,
• public,
• traditional,
• unpaid,
• dangerous,
• demanding,
• menial,
• poor,
• domestic,
• peripheral,
• unskilled,
• simple,
• intensive,
• specialized,
• outdoor,

Simple categories matching useful:

• hydrocarbon,
• organism,
• shop,
• object,
• item,
• salt,
• routine,
• information,
• fluid,
• subject,
• energy,
• tissue,
• residue,
• plant,
• thing,
• enterprise,
• catalyst,
• metal,
• semiconductor,
• animal,
• antidepressant,
• service,
• entity,
• protein,
• piece,
• area,
• venture,
• material,
• appliance,
• article,
• topic,
• facility,
• operations,
• mineral,
• protocol,
• mode,
• action,
• polyhedron,
• prize,
• invention,
• container,
• building,
• grass,
• point,
• needle,
• location,
• data,
• organ,
• arrangement,
• machinery,
• calculation,
• instrument,
• organisation,
• function,
• institution,
• antibiotic,
• symbol,
• database,
• amount,
• surface,
• steroid,
• phenomenon,
• practice,
• emotion,
• business,
• work,
• antioxidant,
• composition,
• skill,
• insect,
• vocabulary,
• ornament,
• phytochemical,
• substance,
• behavior,
• category,
• passion,
• machine,
• text,
• signal,
• implement,
• supply,
• sound,
• outbuilding,
• notion,
• example,
• event,
• stuff,
• product,
• measure,
• instruction,
• help,
• page,
• abstraction,
• lipid,
• acid,
• result,
• document,
• rock,
• fibre,
• purpose,
• substrate,
• ware,
• palm,
• touch,
• project,
• tube,
• resource,
• plastic,
• clothes,
• class,
• trifle,
• device,
• peripheral,
• mechanism,
• metabolite,
• solid,
• count,
• profession,
• course,
• construction,
• knowledge,
• provisions,
• task,
• technique,
• microbe,
• activity,
• unit,
• component,
• shape,
• end,
• credential,
• labor,
• program,
• gas,
• intermediate,
• publication,
• anticonvulsant,
• illustration,
• report,
• view,
• treatment,
• format,
• molecule,
• evidence,
• agreement,
• agent,
• tip,
• transformation,
• library,
• characteristic,
• handicraft,
• particle,
• perennial,
• pharmaceutical,
• remedy,
• vocation,
• lexis,
• pot,
• relic,
• system,
• movement,
• attribute,
• identifier,
• trade,
• regulation,
• amenities,
• character,
• match,
• vehicle,
• protection,
• microorganism,
• weapon,
• creature,
• equipment,
• quality,
• reminder,
• support,
• nutrient,
• button,
• commodity,
• elements,
• solute,
• legume,
• utensil,
• bird,
• toiletry,
• variation,
• sensor,
• job,
• graph,
• fuel,
• record,
• plane,
• widget,
• index,
• improvement,
• process,
• book,
• prefab,
• species,
• garment,
• concept,
• fraction,
• accessory,
• framework,
• alloy,
• situation,
• gear,
• guidance,
• card,
• constituent,
• output,
• quantity,
• bacteria,
• property,
• occupation,
• info,
• message,
• life,
• ability,
• theory,
• artifact,
• compound,
• herb,
• group,
• gadget,
• predator,
• value,
• part,
• larva,
• structure,
• necessity,
• dog,
• furniture,
• arts,
• form,
• behaviour,
• option,
• language,
• layer,
• craft,
• links,
• tree,
• extra,
• derivative,
• section,
• science,
• macromolecule,
• feature,
• chemical,
• artefact,
• assets,
• content,
• byproduct,
• position,
• utility,
• deliverable,
• model,
• indicator,
• table,
• tool,
• software,
• room,
• trait,
• place,
• fixture,
• drug,
• address,
• details,
• control,
• deposit,
• application,
• polymer,
• theme,
• food,