Task: Text Categorization
Input (English): In an essay titled "concerning" this concept, Adolf Reinach argues that ordinal numbers do not exist. Maurice Merleau-Ponty drew on the phantom limb experience of amputees in a book describing this concept "of perception." Edmund Husserl wrote two books about the relationship of ideas to the "pure" type of it. The master-slave dialectic is described in a work with this word in its title. For 10 points, name this study of the way people experience things, which is "of spirit" in the title of a Hegel work.
Output (English): Social Science