class Pet
	attr_reader :color, :breed
	attr_accessor :name
	def initialize(color,breed)
		@color = color
		@breed = breed
		@hungry = true
	end
	def feed(food)
		puts "Mmmm, " + food + "!"
		@hungry = false
	end
	def hungry?
		if @hungry
			puts "I\'m hungry!"
		else
			puts "I'\m full!"
		end
		@hungry
	end
end

class Cat < Pet
	def speak
		puts "Meow!"
	end
end

class Dog < Pet
	def speak
		puts "Woof!"
	end
end

kitty = Cat.new("grey","Persian")
kitty.name = "Jack"
puts kitty.name
kitty.feed("fish")
kitty.hungry?
kitty.speak

puppy = Dog.new("black","Staffordshire Terrier")
puppy.speak
puts puppy.breed