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  2. Semantic Web - Wikipedia

    en.wikipedia.org/wiki/Semantic_Web

    For example, understanding the class-instance relationship, or the superclass-subclass relationship, is more than understanding that one concept is a "type of" another concept. These abstractions are taught to computer scientists generally and knowledge engineers specifically but do not match the similar natural language meaning of being a ...

  3. Sun - Wikipedia

    en.wikipedia.org/wiki/Sun

    The proton–proton chain occurs around 9.2 × 10 37 times each second in the core, converting about 3.7 × 10 38 protons into alpha particles (helium nuclei) every second (out of a total of ~8.9 × 10 56 free protons in the Sun), or about 6.2 × 10 11 kg/s.