| http://www.w3.org/ns/prov#value | - There are a number of different types on the market, starting with your hands, which are free, but as Elixir???s Ehrmann puts it, ???Sure you can use your hands to squeeze a lemon, but though you can also use your fingers to strain a cocktail, would you???? On the other end of the spectrum, you can get giant-lever based or electronic mechanisms running up to hundreds of dollars.
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