 
 <prompt> text: ```IPA Braille na di modern standard Braille encoding of di International Phonetic Alphabet (IPA), as e dey recognized by di International Council on English Braille.

A braille version of di IPA bin first create by Merrick and Potthoff for 1934, and e bin publish for London. E bin dey use for France, Germany, and anglophone countries. However, e no dey updated as di IPA dey evolve, and by 1989 e don become obsolete. For 1990 e officially reissued by BAUK, but in a corrupted form wey make am largely unworkable. For 1997 BANA create a completely new system for di United States and Canada. However, e no dey compatible with braille IPA for other parts of di world and on top of that e dey cumbersome and often inadequate. For 2008 Robert Englebretson revise di Merrick and Potthoff notation and by 2011 dis one don dey accepted by BANA. E dey largely true to di original for consonants and vowels, though di diacritics dem bin completely reworked, as e dey necessary because of di major revisions for print IPA diacritics since 1934. Di diacritics dem also dey more systematic, and dem dey follow instead of dey come before di base letters. However, e no get general procedure for marking tone, and not all diacritics fit fit write.

IPA Braille no dey use di conventions of English Braille. E dey set off by slash or square brackets, wey dey show say di material wey dey inside na IPA instead of national orthography. So brackets dey necessary for braille even when dem no dey use for print.

Based on di article and di following list of answers, write a list of questions.

1. No
2. E dey set off by slash or square brackets
3. Yes
4. 1989
5. di modern standard Braille encoding of di International Phonetic Alphabet
6. France
7. Germany
8. Merrick and Potthoff
9. London
10. 1934
11. BAUK
12. No
13. BANA
14. For 1997
15. No
16. di United States and Canada
17. Robert Englebretson
18. di diacritics
19. Yes
20. No

Numbered questions:``` <response>: ```1. IPA Braille dey use di conventions of English Braille?
2. wetin dey show say di material na IPA?
3. na those brackets dey necessary?
4. which year IPA become obsolete?
5. wetin be IPA?
6. where dem start to use am?
7. where else?
8. who create am?
9. where e first publish?
10. when?
11. who bring am back?
12. e successful?
13. who create brand new system?
14. when?
15. e compatible with Braille from other places?
16. which countries e dey for?
17. who revise the Merrick and Pothoff version?
18. wetin e completely rework?
19. BANA accept am?
20. all diacritics fit write?``` 