Step 1: Identify the given inputs
The inputs given are ai, ei, and ui.

Step 2: Determine the pronunciation of each input
ai is typically pronounced as 爱 or ǎi in Pinyin, which sounds like eye but with a rising tone in Mandarin Chinese.
ei is pronounced as ei in English, similar to eight without the t sound, or more accurately in Pinyin, it sounds like ei in reign.
ui can be pronounced like uee or more specifically in Pinyin, it sounds similar to way without the w, but with a u sound followed by a i sound.

3: Provide a standard romanization or common reading if applicable
In Hanyu Pinyin, which is the standard system for romanizing Chinese characters:
ai is read as ài,
ei is read as éi,
ui is not a standard combination but could be part of ui in some contexts, however, commonly, it would be seen in combinations like gui or as part of a larger character's reading.

4: Consider common Chinese pronunciation
In Mandarin Chinese, these combinations can represent sounds in different contexts, but directly:
ai reads like ai in aisle,
ei reads like ei in vein,
ui can be tricky but often represents a sound similar to ooee.

The final answer is:
ai: 爱
ei: 诶
ui: 威