Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_77 (sound VARCHAR, publisher VARCHAR, language VARCHAR, classifaction VARCHAR)
### Question:
What sound has cantonese as the language, N/A as the classification, and spectrum dvd as the publisher?
### Answer:
SELECT sound FROM table_name_77 WHERE language = "cantonese" AND classifaction = "n/a" AND publisher = "spectrum dvd"