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_48600 ( "Year" real, "Track" text, "250 cc" text, "500 cc" text, "Report" text )

### Question ###
What is the 250 cc with a year bigger than 1984?

### Accurate SQL ###

SELECT "250 cc" FROM table_48600 WHERE "Year" > '1984'