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_49 (standard_name VARCHAR, version VARCHAR, downstream_rate VARCHAR)
### Question:
What's the standard name with an ADSL2 version and a 01.5 1.5 mbit/s downstream rate?
### Answer:
SELECT standard_name FROM table_name_49 WHERE version = "adsl2" AND downstream_rate = "01.5 1.5 mbit/s"