EXPLAIN on non-Data Manipulation Statements throws error 1064 in QAN2

We shouldn't be running EXPLAIN on non-Data Manipulation Statements, of which the most common are:

SELECT
UPDATE
INSERT
DELETE

Otherwise we see the following error in QAN2:

Examples of where EXPLAIN has thrown ERROR 1064 are:

LOCK TABLES
SET
QUIT
SHOW SLAVE STATUS

Maybe in this case it should return message: EXPLAIN failed: cannot convert query to SELECT or other relevant message.

Task 

Implement User-friendly Error warning - "This type of query is not supported for EXPLAIN."