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 (lib_dem INTEGER, conservative INTEGER)
### Question:
Name the the average Lib Dem with Conservative smaller than 0?
### Answer:
SELECT AVG(lib_dem) FROM table_name_87 WHERE conservative < 0