| http://www.w3.org/ns/prov#value | - you are crazy dude. i think you are the troll. just playing this devils advocate and arguing just to argue. nice try at changing the subject, but alas a tool is a device or implement, esp. one held in the hand, used to carry out a particular function.therefore, concrete is being used as a tool. it is being used for the function of grinding down the seal on the top of the can. if you didn't have th
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