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Kviria is in beta and covers the contiguous United States: latitude 24.4 to 49.5, longitude -125.0 to -66.8. More areas are planned.

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Outside coverage

A position outside those bounds gets none with an out_of_coverage evidence entry. This is the real answer for a position in London:
The turn is never charged. It counts toward the free turns, like any other turn of an account without a balance. Tell the user the place is outside current coverage. Do not try other positions.

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Inside coverage

Inside coverage, none means Kviria looked and found nothing that matches. It never offers an invented place instead. When the user asked for a kind of place, category names it. Say so to the user, and ask for a nearby business, a landmark or a street address instead. Do not try other house numbers: on a street whose doors are not in the data, every number answers none.

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Why the data varies

Kviria’s places and addresses come from open map data. How complete it is varies from area to area:
  • Some streets have no house numbers in the data, so an address on them answers none.
  • A business that opened recently may be missing, and one that closed may still be listed.
  • A place’s recorded position can sit some meters away from its entrance.
To see how an area answers before you rely on it, try it in the Playground.