{
  "article": [
    "https://nl.wikipedia.org/wiki/Zwart_gat",
    "https://nl.wikipedia.org/wiki/Algemene_relativiteitstheorie",
    "https://nl.wikipedia.org/wiki/Ruimtetijd"
  ],
  "chemical_element": [
    "Actinium|Ac|89",
    "Aluminium|Al|13",
    "Americium|Am|95",
    "Antimoon|Sb|51",
    "Argon|Ar|18",
    "Arseen|As|33",
    "Astaat|At|85",
    "Barium|Ba|56",
    "Berkelium|Bk|97",
    "Beryllium|Be|4",
    "Bismut|Bi|83",
    "Bohrium|Bh|107",
    "Boor|B|5",
    "Broom|Br|35",
    "Cadmium|Cd|48",
    "Calcium|Ca|20",
    "Californium|Cf|98",
    "Cerium|Ce|58",
    "Cesium|Cs|55",
    "Chloor|Cl|17",
    "Chroom|Cr|24",
    "Copernicium|Cn|112",
    "Curium|Cm|96",
    "Darmstadtium|Ds|110",
    "Dubnium|Db|105",
    "Dysprosium|Dy|66",
    "Einsteinium|Es|99",
    "Erbium|Er|68",
    "Europium|Eu|63",
    "Fermium|Fm|100",
    "Flerovium|Fl|114",
    "Fluor|F|9",
    "Fosfor|P|15",
    "Francium|Fr|87",
    "Gadolinium|Gd|64",
    "Gallium|Ga|31",
    "Germanium|Ge|32",
    "Goud|Au|79",
    "Hafnium|Hf|72",
    "Hassium|Hs|108",
    "Helium|He|2",
    "Holmium|Ho|67",
    "IJzer|Fe|26",
    "Indium|In|49",
    "Iridium|Ir|77",
    "Jood|I|53",
    "Kalium|K|19",
    "Kobalt|Co|27",
    "Koolstof|C|6",
    "Koper|Cu|29",
    "Krypton|Kr|36",
    "Kwik|Hg|80",
    "Lanthaan|La|57",
    "Lawrencium|Lr|103",
    "Lithium|Li|3",
    "Livermorium|Lv|116",
    "Lood|Pb|82",
    "Lutetium|Lu|71",
    "Magnesium|Mg|12",
    "Mangaan|Mn|25",
    "Meitnerium|Mt|109",
    "Mendelevium|Md|101",
    "Molybdeen|Mo|42",
    "Moscovium|Mc|115",
    "Natrium|Na|11",
    "Neodymium|Nd|60",
    "Neon|Ne|10",
    "Neptunium|Np|93",
    "Nihonium|Nh|113",
    "Nikkel|Ni|28",
    "Niobium|Nb|41",
    "Nobelium|No|102",
    "Oganesson|Og|118",
    "Osmium|Os|76",
    "Palladium|Pd|46",
    "Platina|Pt|78",
    "Plutonium|Pu|94",
    "Polonium|Po|84",
    "Praseodymium|Pr|59",
    "Promethium|Pm|61",
    "Protactinium|Pa|91",
    "Radium|Ra|88",
    "Radon|Rn|86",
    "Renium|Re|75",
    "Rhodium|Rh|45",
    "Rubidium|Rb|37",
    "Ruthenium|Ru|44",
    "Rutherfordium|Rf|104",
    "Röntgenium|Rg|111",
    "Samarium|Sm|62",
    "Scandium|Sc|21",
    "Seaborgium|Sg|106",
    "Seleen|Se|34",
    "Silicium|Si|14",
    "Stikstof|N|7",
    "Strontium|Sr|38",
    "Tantaal|Ta|73",
    "Technetium|Tc|43",
    "Telluur|Te|52",
    "Tennessine|Ts|117",
    "Terbium|Tb|65",
    "Thallium|Tl|81",
    "Thorium|Th|90",
    "Thulium|Tm|69",
    "Tin|Sn|50",
    "Titanium|Ti|22",
    "Uranium|U|92",
    "Vanadium|V|23",
    "Waterstof|H|1",
    "Wolfraam|W|74",
    "Xenon|Xe|54",
    "Ytterbium|Yb|70",
    "Yttrium|Y|39",
    "Zilver|Ag|47",
    "Zink|Zn|30",
    "Zirkonium|Zr|40",
    "Zuurstof|O|8",
    "Zwavel|S|16"
  ]
}