Modifiers matching protocol:

• common,
• electronic,
• reliable,
• modern,
• traditional,
• basic,
• useful,
• secure,
• old,
• streaming,
• secondary,
• complex,
• simple,
• complicated,
• level,
• outdated,
• active,
• wan,
• key,
• major,
• available,
• underlying,
• standard,
• layer,
• external,
• individual,
• open,
• current,
• popular,
• medical,

Simple categories matching outdated:

• medication,
• appliance,
• protocol,