such combinations can be displayed to assist the customer throughout this description the embodiments and examples shown should be considered as exemplars rather than limitations on the apparatus and procedures disclosed or claimed although many of the examples presented herein involve specific combinations of method acts or system elements it should be understood that those acts and those elements may be combined in other ways to accomplish the same objectives acts elements and features discussed only in connection with one embodiment are not intended to be excluded from a similar role in other embodiments as used herein u201c plurality u201d means two or more as used herein a u201c set u201d of items may include one or more of such items as used herein whether in the written description or the claims the terms u201c comprising u201d u201c including u201d u201c carrying u201d u201c having u201d u201c containing u201d u201c involving u201d and the like are to be understood to be open ended i e to mean including but not limited to only the transitional phrases u201c consisting of u201d and u201c consisting essentially of u201d respectively are closed or semi closed transitional phrases with respect to claims use of ordinal terms such as u201c first u201d u201c second u201d u201c third u201d etc in the claims to modify a claim element does not by itself connote any priority precedence.