This is a statement of common knowledge regarding the International Phonetic Alphabet and phonetics, requiring no formal citation.
The claim states that the International Phonetic Alphabet uses the same symbols for different phonetic realizations across English and French (e.g., the letter /i/ or /a/ representing different vowel qualities in each language). This is a foundational, axiomatic fact about how a universal phonetic alphabet applies to specific natural languages. Per the system instructions, trivially true observations do not require citation and are classified as COMMON_KNOWLEDGE.