Vacha Dam
... that Vacha Dam is the tallest dam in Bulgaria?
... that <b id="mwBa0"><a href="./Vacha_Reservoir" id="mwBa4" rel="mw:WikiLink" title="Vacha Reservoir">Vacha Dam</a></b> is the tallest dam in <a href="./Bulgaria" id="mwBa8" rel="mw:WikiLink" title="Bulgaria">Bulgaria</a>?