gistfile1.txt

#in child_class_test.rb

word = Word.new

#EOF child_class_test.rb

# in lib/word.rb

require_relative 'noun'

class Word

  attr_reader :word, :part_of_speech, :definition, :etymology, :pronunciation
  
  def initialize
    @word = Noun.new
  end

  def to_s
    @word.to_s
  end
  
end

# EOF word.rb

# in lib/noun.rb

class Noun < Word

  def initialize
    @word = "cat"
    @part_of_speech = :noun
  end

end

# EOF noun.rb