Category Nuances for paper_sheet:

• portable,
• flexible,
• promotional,
• disposable,
• edible,
• organic,
• flammable,
• artificial,
• base,
• porous,
• printable,
• abrasive,
• soft,
• compressible,
• flat,
• polymeric,
• anisotropic,
• conductive,
• hydrophilic,

Simple Categories for paper_sheet:

• material,
• substrate,
• medium,
• object,
• product,
• surface,
• structure,
• vehicle,
• sheet,
• item,