<prompt> Hlanganisa amaqiniso bese uphendula lokhu: USheldon osemusha, uchungechunge lwethelevishini olulandela uhlamvu lukaSheldon Cooper eneminyaka engu-9 ubudala, uyisiqephu esivela kuyiphi i-prequel?  <response>: Imfundiso Yokuqhuma Okukhulu 