| http://www.w3.org/ns/prov#value | - While cleaning is easy, there are a few things to avoid:* do not use oil based, wax, polish, or strong ammoniated or abrasive cleaners.* do not use steel wool or scouring powder.* do not wash or wet-mop the floor with soap, water, oil-soap detergent, or any other liquid cleaning material.
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