Arneis
... that the white Piedmont wine grape Arneis is known as "white Barolo" because it was traditionally blended with Nebbiolo to soften that grape's harsh tannins?
... that the white <a href="./Piedmont_wine" id="mwEc0" rel="mw:WikiLink" title="Piedmont wine">Piedmont wine</a> grape <b id="mwEc4"><a href="./Arneis" id="mwEc8" rel="mw:WikiLink" title="Arneis">Arneis</a></b> is known as "white <a href="./Barolo" id="mwEdA" rel="mw:WikiLink" title="Barolo">Barolo</a>" because it was traditionally blended with <a href="./Nebbiolo" id="mwEdE" rel="mw:WikiLink" title="Nebbiolo">Nebbiolo</a> to soften that grape's harsh <a href="./Tannin" id="mwEdI" rel="mw:WikiLink" title="Tannin">tannins</a>?