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_87 (longitude INTEGER, county VARCHAR, latitude VARCHAR)
### Question:
How much Longitude has a County of nelson, and a Latitude larger than 47.980183?
### Answer:
SELECT SUM(longitude) FROM table_name_87 WHERE county = "nelson" AND latitude > 47.980183