Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_98 (iucn VARCHAR, est VARCHAR, reserve VARCHAR)

### Question ###
What is the IUCN for the Cockscomb Basin reserve when the Est. is less than 1998?

### Accurate SQL ###

SELECT iucn FROM table_name_98 WHERE est < 1998 AND reserve = "cockscomb basin"