Question: Who is younger, Isaiah Oliver or Natalya Mikhaylova?
Sentence (from "Natalya Mikhaylova"): Natalya Vasilievna Mikhaylova( born 19 May 1948) is a Soviet swimmer who won a silver medal in the 4 × 100 m medley relay at the 1966 European Aquatics Championships; she finished fourth in the individual 100 m backstroke competition.
Relevant evidence: Yes