I'm not into "bible codes" but I noticed that in the the 3rd and 5th perakim of Eicha every pasuk is no less than 4 words and no more than 7. This is if you count hyphenated words as 1 word (I'm using the Stone Artscroll tanach). I would assume this was a literary device to connote a sense of halting to the reader, but it's odd to me that it would only be employed in those perakim.
Has this pattern been noticed before, and if so, is there any meaning assigned to it?