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_28136_15 (rusyn VARCHAR, bulgarian VARCHAR)
### Question:
How many words are there in rusyn for the bulgarian word купува (kupuva)?
### Answer:
SELECT COUNT(rusyn) FROM table_28136_15 WHERE bulgarian = "купува (kupuva)"