    Sentence 1: The 30-year bond US30YT =  R firmed 26 / 32 , taking its yield to 4.17  rcent , after hitting another record low   of 4.16 percent .    tence 2: The 30-year bond US30YT =  R firmed 14 / 32 , taking its yield to 4.19)  rcent from 4.22 percent .