Punctuation. Special symbols and punctuation should only be included when absolutely necessary. For example, an apostrophe is included in English words like “don’t” and “we’re” and should be included in the source text, but it’s unlikely you’ll ever need a special symbol like “@” or “#.”
sitelen lili pini la, o kepeken ona lon tenpo lili. toki pona li kepeken ala ni lon insa nimi. sina wile kepeken sitelen lili pini la, ni li ken pona. taso, o kepeken lili ona.