-

(Note: Since there's no text to translate, I'm returning the original symbol.)--

(Note: Since there was no text provided, I'm returning an empty translation as per rule 10)-

(Note: Since the input is a single hyphen, I'm returning the same character as the translation)-'-

(Note: Since there's no text to translate, I'm returning the original symbol)- -- -

(Note: Since there is no text to translate, I'm returning the hyphen as it is.)-

(Note: Since the input is a single hyphen, I'm returning the same character as the translation.)-

(Note: Since there's no text to translate, I'm returning the hyphen as is.)-

(Note: Since there is no text to translate, I'm returning a single hyphen as per rule 10)-

(Note: The translation of a single hyphen is also a single hyphen)-

(Note: Since the input is a single hyphen, I'm returning the same character as there's no text to translate.)-