Question: What landmark is located in Caithness, Scotland, and west of John o' Groats?
Sentence (from "Wick Airport"): Wick John O' Groats Airport (IATA: WIC, ICAO: EGPC) is located 1 NM north of the town of Wick in Caithness at the north-eastern extremity of the mainland of Scotland.
Relevant evidence: No