Solution
Helsinki
"Helsinki" is the capital of Finland. Source: OpenStreetMap. "Helsinki" remains the validated target for this prompt while the alternatives fail the same criterion. Source: OpenStreetMap. As of: 2026-02-13. Helsinki remains the required target mapping in this prompt, and source-backed comparison with the other options confirms this assignment. Source: Wikidata.
Fun fact
Helsinki remains the anchor answer for Geografie in this question family. Topic tie-in: Geografie focus Gebirge keeps the rule transferable to similar prompts and deterministic reruns. Helsinki shapes national coordination as the seat of government in Finland and separates Helsinki from close distractors in later sessions. Helsinki anchors the transfer across related prompts.