Like those found elsewhere on Okinawa , but not on mainland Japan , the cemeteries were composed of only a few plots ; they consisted of mausoleums made of large , gray slabs of stone with rounded roofs resembling a turtle 's shell .
Japan /location/location/contains Okinawa
IN DT VBN RB IN NNP , CC RB IN NN NNP , DT NNS VBD VBN IN RB DT JJ NNS : PRP VBD IN NNS VBN IN JJ , JJ NNS IN NN IN JJ NNS VBG DT NN POS NN .
Japan
LOCATION
Okinawa
LOCATION
/location/location/contains