The following are names of six famous American opera singers, each of which is encrypted in terms of a simple substitution cipher. A clue given for each of them.

Decrypt the following to identify each of these performers.

(i) Stanchion Portion, knowing that Snrriato denotes a synonym for abandon.

(ii) Freight I. Event, knowing that Ihrheiteg denotes a synonym for dry run.

(iii) Textfew Examined, knowing that in mineralogy Netxmdadx denotes the common name given to cubic silver sulfide.

(iv) Helppipe Lastever, knowing that Tlpial denotes the capital city of a Southeast Asian country.

(v) Seabeach Leaflet, knowing that Bctbet denotes a thing that is showy but useless.

(vi) Fly Suddenly, knowing that Nesyldeyu denotes form of address used to an Italian-speaking unmarried woman.