geometry
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (POINT ZM (30 10 40 300)))
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (LINESTRING ZM (30 10 40 300, 10 30 40 300, 40 40 80 1600)))
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (POLYGON ZM ((30 10 40 300, 40 40 80 1600, 20 40 60 800, 10 20 30 200, 30 10 40 300))))
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (MULTIPOINT ZM ((30 10 40 300))))
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (MULTILINESTRING ZM ((30 10 40 300, 10 30 40 300, 40 40 80 1600))))
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (MULTIPOLYGON ZM (((30 10 40 300, 40 40 80 1600, 20 40 60 800, 10 20 30 200, 30 10 40 300)))))
GEOMETRYCOLLECTION ZM (GEOMETRYCOLLECTION ZM (POINT ZM (30 10 40 300), LINESTRING ZM (30 10 40 300, 10 30 40 300, 40 40 80 1600), POLYGON ZM ((30 10 40 300, 40 40 80 1600, 20 40 60 800, 10 20 30 200, 30 10 40 300)), MULTIPOINT ZM ((30 10 40 300)), MULTILINESTRING ZM ((30 10 40 300, 10 30 40 300, 40 40 80 1600)), MULTIPOLYGON ZM (((30 10 40 300, 40 40 80 1600, 20 40 60 800, 10 20 30 200, 30 10 40 300)))))

GEOMETRYCOLLECTION ZM EMPTY