1. A keypad layout for a hand-held electronic device comprising:
a plurality of keys, including keys “1” through “9” and “0”, configured for data entry of numbers and symbols of a Romanized Chinese phonetic alphabet, each key representing at least
one symbol of a syllable initial symbol group or a syllable semi-initial symbol group of the Romanized Chinese phonetic alphabet,
wherein all keys representing symbols of the syllable initial symbol group are grouped separate from all keys representing
symbols of the syllable semi-initial symbol group.
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