http://www.w3.org/ns/prov#value | - water, other plants float on the surface; animals include insects, snails and other mollusks, amphibians and reptiles, fish, waterfowl, and small and medium mammals; the middle of a lake has small, floating algae and larger, deep swimming fish; the bottom of the lake is very cold and has little or no light, mostly bacteria and fungi live there
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