Andika kifungu kifupi cha hadithi kutokana na mada ifuatayo:  Mtu X lazima kuthibitisha uhakika
Bila shaka, hapa kuna fungu fupi: Kenadi anapaswa kuthibitisha jambo fulani. Anajua kwamba anasema kweli. Lazima amshawishi rafiki yake, ambaye hamwamini.