Read this: In many languages, such as Armenian, Korean, Thai, Indo-Aryan languages, Dravidian languages, Icelandic, Ancient Greek, and the varieties of Chinese, tenuis and aspirated consonants are phonemic. Unaspirated consonants like [p s] and aspirated consonants like [p p s] are separate phonemes, and words are distinguished by whether they have one or the other.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): Sentences are distinguished by what?
unanswerable