text: function Bike() {
  }
  
  Bike.prototype.isWorking = function() {
    if (this.broken == true) {
    return false
  } else  {
    return true
  }
  }
  
  Bike.prototype.reportBroken = function () {
    this.broken = true
    return 'Someone fix this broken bike!'
  }
  
  Bike.prototype.isBroken = function() {
    return this.broken
  }
  