A set of constraints, developed originally by Joseph Greenberg on the basis of Arabic, has been claimed to be typical for Afroasiatic languages.
ɐ sˈɛt ʌv kənstɹˈeɪnts, dɪvˈɛləpt ɚɹˈɪdʒɪnəli baɪ dʒˈoʊsəf ɡɹˈiːnbɜːɡ ɔnðə bˈeɪsɪs ʌv ˈæɹɐbˌɪk, hˈæzbiːn klˈeɪmd təbi tˈɪpɪkəl fɔːɹ ˌæfɹoʊˌeɪsɪˈæɾɪk lˈæŋɡwɪdʒᵻz.