Cuneiform to left-to-right in horizontal rows (rotating all of the pictographs 90° counter-clockwise in the process) and a new wedge-tipped stylus was introduced which was pushed into the clay, producing wedge-shaped ("cuneiform") signs; these two developments made writing quicker and easier. By adjusting the relative position of the tablet to the stylus, the writer could use a single tool to make a variety of impressions. Cuneiform tablets could be fired in kilns to bake them hard, and so provide a permanent record, or they could be left moist and recycled, if permanence was not needed. Many of the clay tablets found
Ù (cuneiform) it is used especially as a segue in text, (example Amarna letters), when changing topics, or when inserting segue-pausing positions. In the Amarna letters, it is also commonly immediately followed by a preposition: "a-na", or "i-na", used as ""...And, to..."", or ""...And, in...""; also ""...But, for..."", etc. This usage with a preposition is also a better example of the segue usage. Of the three u's, by graphemic analysis (Buccellati, 1979), the commonness is as follows: Both "ù (cuneiform)" and ú are in the top 25 most used signs, but E (cuneiform) and "u (cuneiform)" are not; other vowels (or combination)