Modifiers matching investigation:

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

Simple categories matching experimental:

• organism,
• control,
• dimension,
• object,
• animal,
• genre,
• equipment,
• psychology,
• condition,
• science,
• team,
• facility,
• analysis,
• discipline,
• apparatus,
• device,
• vessel,
• design,
• unit,
• devices,
• research,
• substrate,
• plant,
• scientist,
• technique,
• stage,
• project,
• cataract,
• physics,
• works,
• field,
• system,
• procedure,
• artefact,
• fabric,
• hardware,
• surface,
• constraint,
• substance,
• fluid,
• artifact,
• carrier,
• rodent,
• mammal,
• information,
• stuff,
• host,
• tool,
• subject,
• band,
• investigation,
• contaminant,
• program,
• resource,
• property,
• result,
• details,
• experience,
• work,
• situation,
• feature,
• disease,
• instrumentation,
• test,
• values,
• quantity,
• difficulty,
• environment,
• source,
• study,
• topic,
• instrument,
• biology,
• sensor,
• treatment,
• method,
• parameter,
• variance,
• medium,
• intervention,
• variable,
• model,
• material,
• skill,
• data,
• therapy,
• function,