original: approximately 1,100 mud volcanoes have been identified on land and in shallow water .
simplifications: about 1,100 mud volcanoes have been identified on land and in shallow water . there are about 1,100 mud volcanoes on land and in shallow water . nearly 1,100 mud volcanoes have been singled out on land and shallow water . approximately 1,100 mud volcanoes have been identified on land in shallow water . about 1,100 mud volcanoes have been found on land and in shallow water . approximately 1,100 mud volcanoes have been identified on land and in shallow water . about 1,100 mud volcanoes have been identified on land and in shallow water . around 1,100 mud volcanoes have been seen on land and shallow water .