| http://www.w3.org/ns/prov#value | - tem that provides a user with all the items required to install equipment and hook-up materials of a construction project that are grouped together as a single group and added to an estimate as a group. [0014] Still another object of the present invention is a mechanical cost estimating method and system that provides a graphical user interface data entry screen in a take off sheet. [0015] Briefly
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