How many items were listed under world rank under the nation of Nigeria?
CREATE TABLE table_2248991_2 (world_rank VARCHAR, nation VARCHAR)
SELECT COUNT(world_rank) FROM table_2248991_2 WHERE nation = "Nigeria"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_2248991_2 (world_rank VARCHAR, nation VARCHAR) Question: How many items were listed under world rank under the nation of Nigeria? [/INST] SELECT COUNT(world_rank) FROM table_2248991_2 WHERE nation = "Nigeria" </s>