How many Ore get for the Seam Building.

[jswongyt]

From the rule book
Seam
(Building costs: 2 Wood;
Worth 1 Gold point)
From now on, you will immediately get 1 Ore from the
general supply on top of each Stone you get (regardless
of how you got the Stone).

i understand is you get 3 stones and you also get 1 Ore, like Bgg here is get how many stones then you get how many Ores. is this a bug?~

[MasterPhil0934]

For every stone, you get 1 ore. If you gain 3 stones, you will also gain 3 ores.