Category Nuances for ra:

• individual,
• dissolved,
• inflammatory,
• new,
• animal,
• heavier,
• musculoskeletal,
• chemical,
• possible,
• unusual,
• sensitive,
• japanese,

Simple Categories for ra:

• state,
• group,
• constituent,
• atom,
• system,
• cause,
• control,
• entity,
• space,
• component,
• form,