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However, in some cases a stop is reported by another PTA before the owner has defined this stop in their province. In these cases, this can be seen in the data-from field, where the THM number of the providing PTA is stored. This is not limited to the numeric range from 1 to 25, as even private operators can be the first to provide a stop place. As soon as the owner starts delivering data for this stop, the owner will take over as data provider. The data-from key-value will then start matching owner key value. In the case described here when a stop is reported by another PTA than the owner, the new stop gets a key-value preliminary which is set to true. When the stop has been approved (even if the owner has not started to deliver data for this stop yet) the data has been verified as correct the preliminary key-value will disappear.
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