A common puzzle is to see how to make sentences from the same letters, or the longest word in alphabetical order, etc. see here for a list.
Now 'the x-height or corpus size refers to the distance between the baseline and the mean line of lower-case letters in a typeface.' (Wikipedia). Here, I want letters to be of an x-height less or equal to half of the ascent or cap height (e.g. n, x as seen below, or in the Wikipedia page).
Hence the acceptable letters are:
a, c, e, m, n, o, r, s, u, v, w, x, z.
i is omitted, since as shown in the diagram, the dot is above the mean line.
You have two challenges:
1) Find the longest word that can be made out of only these letters.
2) Find the longest comprehensible sentence out of these letters. Comprehensible as in some reasonable situation in which you would use this sentence, other than as an answer to this puzzle.
You will have to be especially convincing if you have jargon terms.
Some ground rules:
In both cases, repeating letters will be allowed. Repeating words is not allowed, to avoid cases like this. Proper nouns should be alright. More brownie points if your sentences/words omit punctuation that does not to conform to the x-height rules.
As a starting point:
Longest word (no repetition), according to anagram/scrabble solver:
cavernous: like a cavern in size, shape, or atmosphere. (9)