Modifiers matching investigation:

• governmental,
• special,
• federal,
• diagnostic,
• major,
• empirical,
• technical,
• preoperative,
• spatial,
• detailed,
• clinical,
• expensive,
• haematological,
• additional,
• regulatory,
• gastrointestinal,
• costly,
• painful,
• good,
• common,
• demanding,
• radiological,
• social,
• scientific,
• intrusive,
• extensive,
• chromosomal,
• invasive,
• medical,
• relevant,
• compulsory,
• supplemental,
• molecular,
• out,
• surgical,
• recent,
• cardiac,
• scholarly,
• basic,
• specialised,
• administrative,
• geologic,
• specialized,
• routine,
• endoscopic,
• simple,
• formal,
• explicit,
• official,
• environmental,
• experimental,
• forensic,
• complementary,
• complex,
• under,
• important,
• necessary,
• current,
• appropriate,
• criminal,
• departmental,
• legal,
• gi,
• instrumental,
• cellular,
• archaeological,
• minor,
• essential,

Simple categories matching demanding:

• sport,
• environment,
• activity,
• pastime,
• program,
• tree,
• instrument,
• plant,
• subject,
• skill,
• market,
• application,
• discipline,
• game,
• topic,
• event,
• duty,
• employment,
• vessel,
• energy,
• pursuit,
• labor,
• behavior,
• content,
• task,
• surface,
• sector,
• industry,
• situation,
• system,
• investigation,
• job,
• profession,
• trade,
• career,
• device,
• charge,
• process,
• service,
• food,
• condition,
• occupation,
• animal,
• state,
• work,