In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Q: These principal letters are divided into four series ( " te mar " ) that correspond to the main places of articulation and into six grades ( " tyeller " ) that correspond to the main manners of articulation .
A:
The main tengwar letters are placed into four vertical series ( " te mar " ) and six horizontal rows ( " tyeller " ) .