Welcome to OpenStreetMap! And thanks for adding the fire hydrants! However please note that OpenStreetMap is a worldwide database of geographic information, so values like colours should be in English to be understandable by a computer. See https://wiki.openstreetmap.org/wiki/Key:colour I changed your addition of colour=Син to colour=blue And ref=* is used to add some reference code, like the number on the fire hydrant that the fire brigade uses to refer to it. Are you sure that ref=Никола Вапцаров 8 is correct? It looks more like an address.