Question: What country do Nemesis and Nemesis Inferno have in common?
Sentence (from "Nemesis Inferno"): Its layout was conceived and designed by John Wardley and then built by Bolliger & Mabillard with Werner Stengel providing the layout calculations, the same Swiss firm that built the related "Nemesis" inverted roller coaster at Alton Towers.
Relevant evidence: No