instruction vs markings

instruction

noun
  • An instance of the information or knowledge so furnished. 

  • The act of instructing, teaching, or furnishing with information or knowledge. 

  • An order or command. 

  • A set of directions provided by a manufacturer for the users of a product or service. 

  • A single operation of a processor defined by an instruction set architecture. 

markings

noun
  • the pattern of colouration on a particular animal 

How often have the words instruction and markings occurred in a corpus of books? (source: Google Ngram Viewer )