Vowel Allophones
With such a sparsely filled vowel space, there is considerable scope for allophonic variation. For example, in closed final syllables, /i/ may be [ɪ] or [e], and /u/ may be [ʊ] or [o] (Clynes 2001).
In ‘The North Wind and the Sun’ passage, angin ‘wind’ and makin ‘the more’ both have [ɪ], and maniup ‘blow’ and pun ‘then’ both have [ʊ].