English en:Gravity (alcoholic beverage) Gravity (alcoholic beverage) OG gravity English OG English English Original Gravity specific gravity Original Gravity specific gravity http://en.wikipedia.org/wiki/Gravity...ic_beverage%29 original gravity English English OG original gravity OG. Original Gravity English English English original gravity Original Gravity en:Gravity (alcoholic beverage) English Final Gravity High Gravity Lager English gravity English English OG OG original gravity English English