Simple categories matching preparatory:

• work,
• works,
• process,
• activity,
• event,
• equipment,

Members with property preparatory:

• voter_education,
• training_camp,
• marketing_analysis,
• brushing,
• planning,
• team_workshop,
• design,
• treatment_planning,
• soaking,
• simulation,
• design_activity,
• construction_work,
• grinding,
• soil_characterization,
• document_review,
• cryostat,
• route_survey,
• research,
• sterilization,
• analysis,
• field_testing,
• data_encoding,
• writing,
• reading,
• microtome,
• resource_survey,
• layout,
• surveying,
• separation,
• budget_development,
• opener,
• archaeological_survey,
• building_project,
• lab_work,
• medication,
• working_procedure,
• study,
• scan,
• journal_review,
• audit,
• excavation,
• literature_search,
• design_works,
• analytical_calculation,
• spatial_planning,
• resettlement_survey,
• centrifuge,
• line_ministry,
• printing_works,
• manual,
• boiling,
• data_collection,
• paint_analysis,
• course,
• coursework,
• utility,
• drawing,
• heating,
• testing,
• account_registration,
• sorting,
• drafting,
• washing,
• munition_dismantling,
• access_works,
• survey,
• guidance_development,
• field_observation,
• visual_inspection,
• development,
• forming_design,
• procedure,