Category Nuances for scuba_gear:

• peripheral,
• commercial,
• necessary,
• bulky,
• essential,
• nautical,
• related,
• optional,
• underwater,
• athletic,
• fragile,
• suitable,
• outdoor,
• special,
• required,
• sporting,

Simple Categories for scuba_gear:

• object,
• gear,
• item,
• equipment,