Question: Are Jenůfa and The Knot Garden operas?
Sentence (from "Jenůfa"): Jenůfa    (Její pastorkyňa, "Her Stepdaughter" in Czech) is an opera in three acts by Leoš Janáček to a Czech libretto by the composer, based on the play "Její pastorkyňa" by Gabriela Preissová.
Relevant evidence: Yes