class Person

  def initialize( name, height, dna_code, wife = nil )
    @name, @height, @dna_code, @wife = name, height, dna_code, wife
  end

  def height
    @name + " is " + @height + " tall."
  end

  def married?
    !@wife.nil?
  end

  def wife
    married? ? @wife : 'none'
  end
end


p = Person.new( 'Jason King', '188cm', 'sdfasdfadfdfs...', 'Sinéad' )
puts p.wife

p2 = Person.new( 'Ruben Ascencio', 'not quite 188cm', 'sdfdfddsassdd' )
puts p2.wife