Premise: The only original bell remaining is the South Tower's famous bourdon, whose much admired purity of tone was achieved by melting down its bronze and mixing it with gold and silver donated by Louis XIV's aristocracy.

Hypothesis: There is a bell that dates back to 1359 that is left in the South Tower.

Does the premise entail the hypothesis?

OPT: --yes. --it is not possible to tell. --no.
it is not possible to tell