class StudyingStudents
  def initialize
    print "\n\nHow many subjects are we talking about? Enter an integer: "
    @quantity = $stdin.gets.chomp.to_i
    print "\n\nWhat type of subject are we talking about? Enter a singular string: "
    @subject = $stdin.gets.chomp.downcase
    @subject_plural = @subject + "s"
    print "\n\nWhat is the exact location in question? Enter a brief string: "
    @location = $stdin.gets.chomp.downcase
  end

  def is_empty?
    @quantity.zero? # == 0?
  end

  def start_staring # action begins here
     puts keep_staring("are furiously studying at the #{@location}. ") + one_gets_frustrated + keep_staring(" remain at the #{@location}")
  end

  def keep_staring(context="") # output starts here ... main stanza
    "#{(@quantity > 0)? @quantity.to_s : 'No more' } " "#{(@quantity == 1)?  @subject : @subject_plural}" + context
  end

  def one_gets_frustrated
    @quantity -= 1
    print "One leaves to go home, bake a rhubarb pie, and call it a day. "
  end
end

lair = StudyingStudents.new
lair.start_staring until lair.is_empty?