Traditional Culture Encyclopedia - Tourist attractions - Ask you a few riddles about "mouth"

Ask you a few riddles about "mouth"

one mouth is divided into two groups-Japan,

two mouths are up and down-Lu,

three mouths are stacked with arhats-products,

four mouths turn around-Tian,

five mouths are not you-Wu,

six mouths are long and double-angled-qu, and

seven mouths are vocal.