199477
Colloid-facilitated transport designates a transport process by which colloid al particles serve as transport vector of diverse contaminants in the surface water ( sea water , lakes , rivers , fresh water bodies ) and in underground water circulating in fissured rocks ( limestone , sandstone , granite , ... ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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