semantic_equality.rb

class Name
  
  attr_accessor :first_name, :last_name
  
  def initialize(first_name, last_name)
    @first_name = first_name
    @last_name = last_name
  end
  
  def name
    "#{first_name} #{last_name}"
  end
  
  def ==(other)
    name == other.name
  end
end


class ClothingManufacturer
  attr_accessor :name #, ...
  
  def initialize(name)
    @name = name
  end
end

o1 = Name.new('Calvin', 'Klein')
o2 = ClothingManufacturer.new('Calvin Klein')

puts o1 == o2
# prints: true