This is the 4534th most frequent Japanese word.
島原
Shimabara: A city in Nagasaki Prefecture, Japan, known for its historical significance and volcanic activity.
In this sentence, '島原' is used as a proper noun referring to a location in Japan.
島原は美しい町です。
Shimabara is a beautiful town.
Here, '島原' refers to the town and is used possessively to describe its cultural aspect.
島原の文化はとても興味深いです。
The culture of Shimabara is very interesting.
In this case, '島原' is the direct object of the verb 'visit' indicating intended action towards the town.