apple 係 唔 係 aa3
apple hai6 m4 hai6 aa3
L2 v adv:neg v fil
apple 係 唔 係 aa3 ?
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a p p l e WORD_BOUNDARY 係 WORD_BOUNDARY 唔 WORD_BOUNDARY 係 WORD_BOUNDARY a a 3 WORD_BOUNDARY ? WORD_BOUNDARY