rtokens: The spread between benchmark bonds narrowed 77 basis points from 81 basis points at the close of trading on Wednesday .
pos: DT NNP JJ NN VBD CD TO VB CD NN .
tokens: The U.S. 30-year benchmark fell 30/32 to yield 7.12 percent .
ltokens: Canada 's 8.0 percent bond due 2023 fell C$ 0.45 to C$ 101.15 to yield 7.894 percent .