class Thing
  def initialize( aName, aDescription )
    @name = aName
    @description = aDescription
    puts ("Thing.initialize: #{self.inspect}\n\n")
  end

  def aMethod( aNewName )
    @name = aNewName
    puts ("Thing.aMethod: #{self.inspect}\n\n")
  end
end

class Thing2 < Thing
  def initialize( aName, aDescription)
    super
    @fulldescription = "this is #{@name}, which is #{@description}"
    puts ("Thing2.initialize: #{self.inspect}\n\n")
  end

  def aMethod( aNewName, aNewDescription )
    super( aNewName )
    puts ("Thing2.aMethod: #{self.inspect}\n\n")
  end
end

class Thing3 < Thing2
  def initialize( aName, aDescription, aValue )
    super( aName, aDescription )
    @value = aValue
    puts ("Thing3.initialize: #{self.inspect}\n\n")
  end

  def aMethod( aNewName, aNewDescription, aNewValue )
    super( aNewName, aNewDescription )
    @value = aNewValue
    puts ("Thing3.aMethod: #{self.inspect}\n\n")
  end
end

class Thing4 < Thing3
  def aMethod
    puts ("Thing4.aMethod: #{self.inspect}\n\n")
  end
end

class Thing5 < Thing4
end

t = Thing.new("a thing ", "a lovely full of thinginess")
t.aMethod("a new thing")

t2 = Thing2.new("a thing2", "a thing2 thing of great beauty")
t2.aMethod("a new thing2", "a new thing2 description")

t3 = Thing3.new("a thing3", "a thing3 full of thing and thing2iness",500)
t3.aMethod("a new thing3", "and a new thing3 description",1000)

t4 = Thing4.new("a thing4", "the nicest thing4 you will ever see",10)
t4.aMethod

t5 = Thing5.new("a thing5", "a very simple thing5",40)
t5.aMethod