[LorenPechtel]

It would be safe enough if the ones that are close are *guaranteed* to be exceedingly far apart and the lookup algorithm allowed specifying an area.

If correct horse battery is in England and correct house battery is in China and you have a well designed lookup it would know you're looking for something in England.

correct house battery is in China at x, y. Do you mean correct horse battery in England at z, w?

The real danger comes when the mistakes are a few miles apart.