Question: How many acts are in the opera based on an 1820 poem by Alexander Pushkinhave, in which Mariya Matveyevna Stepanova created the lead soprano role?
Sentence (from "Ruslan and Lyudmila (opera)"): Ruslan and Lyudmila (Russian: Руслан и Людмила , "Ruslan i Lyudmila") is an opera in five acts (eight tableaux) composed by Mikhail Glinka between 1837 and 1842.
Relevant evidence: Yes