Oo iridda xagga bari qolladeheedana waxay ahaayeen saddex dhinac ku taal iyo saddex dhinaca kale ku taal, oo saddexdooduba isku qiyaas bay ahaayeen, oo tiirarkuna dhankan isku qiyaas bay ku lahaayeen oo dhanka kalena isku qiyaas bay ku lahaayeen.