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_16768245_2 (namesake VARCHAR, longitude VARCHAR)
### Question:
What is the namesake of the feature found at 189.5w longitude? 
### Answer:
SELECT namesake FROM table_16768245_2 WHERE longitude = "189.5W"