Generate a question with a factual answer.
Generated: Why is the F-5 mandolin more expensive?

Generate a question with a factual answer.
Generated: When did the Jewish presence dwindle in the region?

Generate a question with a factual answer.
Generated: What line used the overhead wire system first Victoria to Crystal Palace or Peckham Rye to West Noorwood?

Generate a question with a factual answer.
Generated: When were the earliest annelid fossils found?