Input (grade 13): The castle is frequently known as HakurojÅ ("White Egret Castle") or ShirasagijÅ ("White Heron Castle") because of its brilliant white exterior and supposed resemblance to a bird taking flight.
Output (grade 10): It is sometimes known as HakurojÅ or ShirasagijÅ ("White Heron Castle") because of its brilliant white exterior.