#99 Bottles of beer, in Ruby
#by Mike Gertz, Jan 5, 2003
#See www.rubycentral.com for info on the language.

class OneBottle
     def sing
	puts "One bottle of beer on the wall."
	puts "One bottle of beer."
	puts "Take it down, pass it around."
	puts "No more bottles of appear on the wall!"
     end
end

class TwoBottles
     def sing
	puts "Two bottles of beer on the wall."
	puts "Two b