basic braille in a sentence

1. It is a subset of the basic braille alphabet,
2. Catalog offerings were basic Braille slates, writing guides, maps, spelling frames, etc.
3. The basic braille letters and, which do not occur on their own in IPA usage, appear here.
4. Letter assignments are those of Spanish Braille ( except for the accented vowels ) : that is, the basic braille alphabet plus for " ?".
5. It is based on the 26 letters of the basic braille alphabet used for Grade-1 English Braille, so the print digraph " ch " is written as a digraph in braille as well.
6. It's difficult to find basic braille in a sentence.
7. Philippine Braille is based on the 26 letters of the basic braille alphabet used for Grade-1 English Braille, so the print digraph " ng " is written as a digraph in braille as well.
8. For example : although represents the letter " H " in basic braille, its Unicode definition makes no reference to " H ", and it is just as valid representing Korean  " t-", or Japanese ? " ri ".
9. It is very close to French Braille : it uses the 26 letters of the basic braille alphabet, plus several additional letters for " ?" and what are, in print, vowel letters with diacritics; these differ from their French values only in the need to accommodate the Catalan acute accent : " ? ? ?" for what are in French Braille " ? S
   , ?":