Complex sentence: In English, it has been disputed whether certain consonants occurring between vowels (especially following a stressed syllable and preceding an unstressed syllable) should be grouped with the preceding or following syllable.
Split into simpler sentences: In English, it has been disputed whether certain between vowels are split between syllables (i.e.). In consonants occurring between vowels (especially following a stressed syllable and preceding an unstressed syllable) should be grouped with the preceding or following syllable.