| http://www.w3.org/ns/prov#value | - In accordance with the present disclosure, it is possible to implement a pump of relatively lower flow-rate, and thus of lower cost, than pumps controlled by a clock as in the prior art because, in the prior art, the pumps are calibrated as a function of the time required for bringing the mattress into service, i.e. the time required for initially inflating the mattress, whereas, in some embodimen
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