Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mill Network at Kinderdijk-Elshout' has mentioned 'Drainage' in the following places:
Occurrence Sentence Text Source
Construction of hydraulic works for the drainage of land for agriculture and settlement began in the Middle Ages and has continued uninterruptedly to the present day.
The property illustrates all the typical features associated with this technology: polders, high and low-lying drainage and transport channels for superfluous polder water, embankments and dikes, 19 drainage mills, 3 pumping stations, 2 discharge sluices and 2 Water Board Assembly Houses.
There is no drainage network of this kind or of comparable antiquity anywhere else in the Netherlands or in the world.
Criterion (ii): The Mill Network at Kinderdijk-Elshout with its historic polder areas, high and low-lying drainage channels, mills and millraces, pumping stations, outlet sluices and Water Board Assembly Houses is an outstanding example of the development of Dutch drainage techniques which were copied and adapted in many parts of the world.
The area retains all the relevant features such as the polders with drainage channels and dikes, brick, wooden and thatched windmills, millraces, pumping stations, discharge sluices and Water Board Assembly Houses without any irrelevant or discordant intrusions.
The Mill Network at Kinderdijk-Elshout, with its historic xe2x80x98high and low polder areas with natural drainagexe2x80x99, watercourses, mills and millraces, pumping stations, outlet sluices and Water Board Assembly Houses is practically unchanged.
No changes have been made to the functional hydraulic relationships between drainage machines, polders, and rivers since the sixteen mills of De Nederwaard and De Overwaard were built in 1738 and 1740 respectively, and so the authenticity of the system is also high.