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_13 (virtual_channel VARCHAR, call_sign VARCHAR)
### Question:
Call sign of k43hb-ld is what virtual channel?
### Answer:
SELECT virtual_channel FROM table_name_13 WHERE call_sign = "k43hb-ld"