To illustrate the importance of contextual information in transliteration, let's take name /Minahan/ as an example, the correct segmentation should be /Mi-na-han/, to be transliterated as 米-纳-汉 (Pinyin: Mi-Na-Han).
a possible segmentation /Min-ah-an/ could lead to an undesirable syllabication of 明-阿-安 (Pinyin: Min-A-An).