↩ 🔵 🔵 🔵 ❪✺₄ᵢ❫ Internet Sets ○ ❪✺_ᵢ❫ Internet Subs ○ ❪✺_ₛₛ❫ Computer Subsets ○ ❪✺_ₛₛ❫ Network Subsets ○ Internet ○˒ ❪◑❫ Internet Protocol Suite ○