<https://ittutoria.net/question/caffeine-is-the-active-ingredient-in-coffee-tea-and-some-carbonated-beverages-caffeine-is-the-active/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ittutoria.net/question/caffeine-is-the-active-ingredient-in-coffee-tea-and-some-carbonated-beverages-caffeine-is-the-active/>