The systems and methods partition digital data units in a content aware fashion without relying on any ancestry information, which enables one to find duplicate chunks in unrelated units of digital data even across millions of documents spread across thousands of computer systems. The first semiconductor element 2a has a plurality of first pads 4a and a plurality of second pads 4b arrayed along two facing sides of a major surface. Users can specify archive conditions describing which portions of the data will be moved. The retainer has a top wall affixing to the upper face and a locking barb engaging with the mounting face. % of a conjugated diene-vinyl aromatic multi-block copolymer. The first material gas is fed to the nucleus generation site to form a wire-like semiconductor 2a in the nucleus generation site.