text: 'use strict';
  
  /* declare and assign variables as described in the comments
  
    pay close attention to how each variable is used!
    - is a variable assigned a value when it is declared?
    - is a variable reassigned later in the script?
  
    your challenge is to decide whether to use let or to use const
    - use let if
      the variable is declared without an assignment
      or the variable is ever reassigned later in the script
    - use const if
      the variable is declared with a value and never reassigned
  
  */
  
  let furniture='chair';
  console.log(furniture); // should log 'chair'
  
  const building='house';
  console.log(building); // should log 'house'
  
  furniture = 'table';
  console.log(_); // should log 'table'
  
  let food;
  console.log(food); // should log undefined
  
  food='apple';
  console.log(food); // should log 'apple'
  
  console.log(building); // should log 'house'
  
  console.log(furniture); // should log 'table'
  
  const text=food+', '+'pear';
  console.log(text); // should log 'apple, pear'
  