igbo single line to feature all non-ascii letters

igbo single line to feature all non-ascii letters

Keep only second sentence since it contains all unique characters.
This part should remain correct stand-alone, translating as "Rejoice, get
together, speak and agree that it may stand firm, (s)he surely will grow".

Translation and contraction from deleted Wikipedia post available at:
<http://wpedia.goo.ne.jp/enwiki/Wikipedia_talk:Articles_for_creation/Igbo_Pangram>

Unfortunately no suitable samples found featuring tone marks as commonly
found in practical orthographies.