= 2. Vowel inventories 2.1. [[2.inventories/2.1.size|Size of inventories]]\\ 2.2. [[2.inventories/2.2.counterparts/|Harmonic counterparts]]\\ 2.2.1. [[2.inventories/2.2.counterparts/2.2.1.alternations|Alternations]]\\ 2.2.2. [[2.inventories/2.2.counterparts/2.2.2.do_all_potential_counterparts_alternate|Do all potential counterparts alternate?]]\\ 2.2.3. [[2.inventories/2.2.counterparts/2.2.3.differences_between_short_long_vowels_in_harmony|Differences between short/long (reduced/full) vowels in harmony]]\\ 2.2.4. [[2.inventories/2.2.counterparts/2.2.4.irregular_alternations|Irregular alternations]]\\ 2.2.5. [[2.inventories/2.2.counterparts/2.2.5.allophonic_alternations|Allophonic alternations]]\\ 2.2.6. [[2.inventories/2.2.counterparts/2.2.6.blocked_alternations|Blocked alternations]]\\