<prompt> Translate the following text to Swahili2 Not enough is known about the effects of weight on costs in First Class and Standard A, despite extensive related testimony23.  <response>: Kwa mfano, hakuna ushahidi wa kutosha kuhusu athari za uzito kwa gharama katika darasa la kwanza na kiwango cha A, licha ya ushuhuda wa kina unaohusiana na hilo. 